Pittelkow Laboratory

Chemical synthesis, Supramolecular Chemistry, Curved Aromatic Molecules, Antiaromatic Molecules and Dynamic Combinatorial Chemistry
The research is centered around (organic) synthesis and supramolecular chemistry.

Heterocyclic [8]circulenes and helicenes
We explore the reactivity of benzoquinones and hydroquinones for the preperation of large heterocyclic compounds: tetraoxa[8]circulenes. These compounds are interesting for studies of aromaticity (and antiaromaticity) as well as for their properties in materials chemistry (light emmitting devices, liquid crystals and more). We are also exploring synthetic strategies for nitrogen containing (and other heteroatoms) analogs of the heterocyclic [8]circulenes. This is exemplified by our recent synthesis of azatrioxa[8]circulenes.

We are aiming to use the heterocyclic [8]circulenes as scaffolds in supramolecular chemistry, to explore them as ligands for biomacromolecules and to study the aromaticity/antiaromaticity of the planar cyclooctatetrenes by suitable substitution.

We are also working to extend the synthetic methodology to enable us to prepare heterocyclic helicenes.

Dynamic combinatorial chemistry
We are interested in developing and using dynamic combinatorial chemistry to discover new and unorthodox receptors for small molecules and (bio)macromolecules. The concept is illustrated in the scheme below with LEGO building blocks. The building blocks are connected via reversible chemical bonds and the constitution of the dynamic combinatorial library can be manipulated by binding of a template. This can be used to perform a very elegant three step procedure - synthesis, selection and amplification of a receptor for the template - all in one step.

We are looking for new chemical reactions that make dynamic combinatorial chemistry possible in aqueous media with the aim of templating biologically relevant compounds. A typical project in this field involves a large amount of chemical synthesis and analysis of the discovered complexes.

New receptors for supramolecular chemistry
The design and synthesis of new types of receptors for supramolecular chemistry, with a focus on molecular recognition in aqueous media, is being pursued. We are currently looking at receptors that resemble calixarenes and cucurbiturils.

Our most recent example of this is the anion templated synthesis of Biotin[6]uril - a cyclic 6+6 hexamer of Biotin and formaldehyde:

This macrocycle binds anions in water. Here is the X-ray crystal structure of the macrocycle as a co-crystal with NaI, showing that the iodide ion is situated in the center:

Synthetic methodology
Both the development of new types of reactions, optimised protocols for known substrates and new uses of know reagents are of interest. Often the new reactions and methodologies stems from our other research. At present we are particularly interested in rearrangement reactions involving selenium for the preperation of aryl-selenols and in protecion group chemistry of selenocysteine. These types of chemisties are important for dynamic combinatorial chemistry and for advances in bioorganic chemistry.

Our most recent example of this is the development of the seleno Newman-Kwart rearrangement, described in Angewandte Chemie:

New NIR absorbers - Invisible dyes
In this project we design and synthesise new types of organic near infrared (NIR) absorbers, that ideally are completely colourless. This is an attractive feature for a number of applications, one being in laser welding of plastic materials. If the NIR dye is incorporated into a transparent the NIR dye can be used to absorb th elight from a NIR laser. We collaborate with industrial partners (Coloplast A/S, Novo-Nordisk A/S, The Danish Technological Institute, FORCE technology and Sun Chemical A/S) on this project. Below the UV/Vis/NIR spectra of a commercial absorber (blue) for laser welding of polyethylene is shown together with one of our new absorbers (colourless).

New molecular (photo)switches
The design, synthesis and evaluation of molecular switches is a difficult and rewarding challenge. We are engaged in exploring (photo)switches based on classical azo compounds, hydrazones, imines and thiosemicarbazones. We explore molecular design, synthesis, computational studies, single crystal X-ray crystallography, switching kinetics. In this work we collaborate with Kurt V. Mikkelsen (UCPH), Theis I. Sølling (UCPH) and Liudmil Antonov (https://tautomer.eu/team/).

Group members 

• Assoc. Prof. Michael Pittelkow
• Senior Scientist Fadhil S. Kamounah
• Postdoc Yann Lie
• Postdoc Mathias Hermann
• Postdoc Søren Swenningsen
• PhD student Christoffer Bræstrup
• PhD student Matea Sršen
• PhD Ole Ostendorf
• PhD student Jeppe Schjær Jensen
• Guest PhD student Forough Cheldavi
• MSc Student Vidar Brenner Pedersen
• MSc Student Stefan Koscielniak
• MSc Anders Holst Beier
• MSc Raluca Lazar
• MSc PUK Christoffer Warming
• MSc PUK Amalie Kirstine Skinne
• MSc PUK Jeremi jan Wiackowski
• BSc Matilde Jin Lovmand Roedsted
• BSc Christian Otterstrøm
• BSc Thor Borne
• BSc Jeroen Cornelis H. Grimmelikhuizen
• BSc Vanessa Onome Semitoje
• BSc Kia Bianka Brochmann Jensen
• BSc Casper Hviid

Previous group members (chronological list)

→ PUK Dino Hasanbasic

→ Erasmus student Thomas Soulie

→ Erasmus student Andrea Daunay

→ MSc student Joao Henrique De Souza

→ BSc student Jakob K Fischer Rasmussen

→ BSc student Jonathan Munck

→ BSc student Thomas Svava Mortensen

→ PUK student Sofie Isabella Hroarsdatter Skov

→ PUK student Kia Bianka Brochmann Jensen

→ MSc student Owais Sheikh Ahmed 

→ MSc student Laia Gonzalez Cano

→ MSc student Christian Held Hansen

→ PUK student William Henry Andersen

→ PUL student Jesper Lund Christensen

→ Visiting student Massyl Aliche

→ PUK student Simon Risegaard

→ PUK student Oliver Blomqvist

→ MSc student Jesper Fiege Bruun

→ Visiting student Alba Espanol

→ Visiting student Melanie Sebastian

→ Visiting student Margaux Hanard

→ Visiting student Roma Sastourrne

→ Visiting student Roma Malley

→ Visiting student Christina Zhang 

→ Visiting student Joris Posthuma

→ Postdoc Martin D. Kilde

→ MSc student Emil Jensen

→ MSc student Stefan Smedegaard Warthegau

→ MSc student Hamza Ali Iqbal

→ Visiting student Doyann Zircon

→ Visiting student Nolan Soulie

→ Visiting student Melissa Bouzidi

→ PhD student Bodil Lousen

→ MSc student Michelle Rishøj Pedersen

→ MSc student Ugne Urbaityte

→ MSc student Xiaochen Liu

→ BSc student Stefan Kristian Stens Koscielniak

→ Project student Nivitha Thangarajah

→ BSc student Jeppe Jensen

→ BSc student Christian Held Hansen

→ Project student Nanna Lærke Baun

→ PhD student Kristina Eriksen

→ MSc student Frederik Dietre

→ Msc student (shared with Phil Gale, Sydney) Alessio Cataldo

→ Msc student Nicolai Steen Broberg Hansen

→ Msc student Andreas Kjær Erichsen

→ Msc student Morten Rewers

→ Msc student Casper Egholm Jensen

→ Bsc student Emil Jensen

→ Bsc student Kenneth Thaisen

→ Bsc student Lasse Poulsen

→ Bsc student Kristian Bjerggaard Olesen

→ Bsc student Hamza Ali Iqbal

→ Bsc student (shared with Theis Sølling, Dharan) Sofie Markussen

→ Visiting student Lotte de Vries

→ Postdoc Stephan Korsgaard Pedersen

→ Bsc student (shared with Theis Sø¸lling, Dharan) Gustav Palm-Henriksen

→ Bsc student (shared with Theis Sølling, Dharan) Emil von Rosen Vange

→ Project student Viktor Bliksted Roug Pedersen

→ Msc student Afra Pazhouhan Fekri

→ PhD student Nicolaj N. Andersen

→ Line Raahauge Soerensen MSc student (2017-2018).

→ Sangeetha Karunaharan MSc student (2017-2018). Next appointment: Lundbeck.

→ Visiting student Anselme Geulin (2018)

→ Visiting student Laurene Mosbach (2018)

→ Visiting student Celine Coueffe (2018)

→ Visiting student Rokas Elijosius (2018). Next appointment: MSc student in Cambridge, UK.

→ Visiting student Halina Szymanowska (2018)

→ Lau Romlund Halgreen MSc student (2017-2018).

→ Anne Ulfkjaer PhD student, Postdoc.

→ Munira Mohamed Shishay Hissabu Bsc student (2018)

→ Stefan Smedegaard Warthegau Bsc student (2018)

→ Kasper Hornstrup Hansen Bsc student (2018)

→ Christoffer Bræstrup Bsc student (2018)

→ Michelle Rishøj Pedersen Bsc student (2018)

→ Peter Hansen Bsc student (2018)

→ Anne Poulsen PhD student (2015-2018). Next: Alk Abello.

→ Herriett Wall Visiting student (2017). Next appointment: MSc student in Southampton, UK.

→ Maren Weissenfels Visiting student (2017). Next appointment: MSc student in Mainz, Germany.

→ Sara L. Hammarlund Master's student (2015-2017).

→ Morten H. Joensson Master's student (2015-2017).

→ Mille E. Ottosen Master's student (2015-2017). Next appointment: Lundbeck.

→ Kevin van der Maas Visiting student (2017).

→ Madeleine Newman Visiting student (2016-2017). Next appointment: MSc student in Reading, UK.

 

→ Cecilie Jensen Bachelor student (2017).

→ Afra Pazhouhan Fekri Guest student (2017).

→ Bjarne E. Nielsen PhD student (2014-2017). Next appointment: Novo Nordisk A/S.

→ Kaare V. Thomsen Master's student (2015-2017). Frederiksberg Gymnasium.

→ Anne K. Houborg Master's student (2015-2017). QA at Statens Serum Institute.

→ Sarangki Yogarasa Bachelor student (2016). Master's student in Germany.

→ Pernille Bols Master's student (2015-2017). PhD student in Oxford with Harry Anderson.

→ Remarh Bsoul Master's student (2015-2017).

→ Tomas Lizal Visiting PhD student (2016-2017). PhD student in Brno.

→ Olivia M. Akselsen Master's student (2015-2017). Diving instructor in Palau. Now Novo Nordisk.

→ August Mandal Bachelor student (2016-2017). Msc student at Chem. 

→ Niels T. H. Nielsen Master's student (2014-2016).

→ Nicklas Peter Hovendal Bachelor student (2016).

→ Tjalfe Boel Nordhuus Bachelor student (2016).

→ Gaelle Esnault Erasmus student from France (2016). Next appointment: Master's student at Rouen, France.

→ Alexandre Wormser Erasmus student from France (2016). Next appointment: Master's student at Rouen, France.

→ Marten L. Haupt Master's student (2015-2016). Next appointment: Master's student, CBS.

→ Mads Georg Rasmussen (2016). Next appointment: Master's student, Department of Chemistry, University of Copenhagen.

→ Yuyan Wang (Audrey) Visiting Master's student (2016). Next appointment: Master's student in Hong Kong.

→ Dennis Larsen PhD student (2011-2015). Next appointment: PostDoc with E. T. Kool at Stanford.

→ Thomas Hensel PhD student (2012-2015). Next appointment: chasing love and a job in the Netherlands.

→ Micke Lisbjerg PhD student (2011-2015). Next appointment: Novo Nordisk.

→ Bo M. Jessen Master's student (2013-2015). Next appointment: PhD student, DTU.

→ Morten Kristensen Master's student (2013-2015). Next appointment: Novo Nordisk.

→ Andreas V. Willems Bachelor's student (2015). Next appointment: chasing love and a degree in America.

→ Emil Hansen Research project student (2015). Master's student in inorganic chemistry.

→ Christopher Lind Master's student (2012-2014).

→ Mehnaz Shafiq (2014).Technician student (2014). Next appointment: Department of Chemistry, University of Copenhagen.

→ Sofie Munk Jørgensen Bachelor's student (2011-2014).

→ Zaki Krag Nielsen Master's student (2012-2014). Next appointment: Haldor Topsøe.

→ Malene Plesner Master's student (2012-2014). Next appointment: High school teacher, Frederiksberg.

→ Thomas Criton Erasmus student from France (2014). Next appointment: Master's student at Rouen, France.

→ Tristan Delcaillau Erasmus student from France (2014). Next appointment: Master's student at Rouen, France.

→ Tuncay Hatil Erasmus student from Turkey (2014). Next appointment: Master's student at Istanbul, France.

→ Emirhan Gurdal Erasmus student from Turkey (2014). Next appointment: Master's student at Istanbul, France.

→ Tamara Russ Erasmus student from Germany (2014).

→ Hana Al-Kerdi Master's student (2012-2014).

→ Shiba Poudel Erasmus student from Ireland (2014). Next appointment: Master's student at Dublin institute of technology, Ireland.

→ Brian Rasmussen Postdoc (2010-2014). Next appointment: Novo Nordisk.

→ Barba Petersen Technician student (2013): Next appoitment: Technical staff, Department of Chemistry, University of Copenhagen.

→ Michael Andersen Bachelor student (2012-2013).

→ Anders Bo Skov Project student (2013). Next appointment: Bachelors's student, Department of Chemistry, University of Copenhagen.

→ Jonas Christensen Bachelorstudent (2013). Next appointment: Master's student, Department of Chemistry, University of Copenhagen.

→ Laurine Panchout Erasmus student (2013). Next appointment: Master's student at Rouen, France.

→ Henrik Gotfredsen Bachelor student (2013). Next appointment: Master's student (2013), then PhD student (2015), Department of Chemistry, University of Copenhagen.

→ Martin Kilde Bachelor student (2013). Next appointment: Master's student, Department of Chemistry, University of Copenhagen.

→ Agata Olszewska Erasmus student (2013). Next appointment: Master's student at Gdansk, Poland.

→ Daniel Kamstrup Bachelor student (2012-2013). Next appointment: Student, Department of Medicinal Chemistry, University of Copenhagen.

→ Kristian B. Petersen Bachelor student (2011-2013). Next appointment: Student, Department of Chemistry, University of Copenhagen.

→ Helle Østergren Bak PhD student (2009-2013).

→ Christian Schwalbe Technician student (2012). Next appointment: Permanent technical staff, Department of Chemistry, University of Copenhagen.

→ Sanna Lund Diemer Master's student (2010-2012). Next appointment: Santaris Pharma A/S.

→ Rémi Grosjean Erasmus student (2012). Next appointment: Master's student at ENS in Paris.

→ Claudia Kleinlein Erasmus student (2011-12). Next appointment: Master's student at Ludwig-Maximillians Universtität München and Harvard University (PhD student). PhD student at Harvard (2013-).

→ Denis Trpcevski Master's student (2009-2011).

→ Theis Brock-Nannestad Postdoc (2011). Next appointment: (2012-2014): FNU postdoc in Copenhagen and Caltech.

→ Shubham Agarwal Summer student (2010). Next appointment: Master student at the Indian Institute of Technology in Guwahati.

→ Frederik Peter Winblad Nielsen Bachelor's student (2010).

→ Caralee Nelson (2010). Next appointment: Master student at the Danish Technical University.

→ Kristina Turgeneva Laborarory technician (2010). Next appointment: Permanent technical staff, Department of Chemistry, University of Copenhagen.

→ Michael Åxman Petersen Postdoc (2009). Next appointment: (2009-2011): FNU postdoc in Copenhagen and Berlin.

→ Pernille Farver Laborarory technician (2008). Next appointment: Undergraduate student at the faculty of phamaceutical sciences, University of Copenhagen.

→ Richard A. Peck Bachelor's student (2006-2007). Next appointment: Master's Student, ITU.

List of Bachelor's-, Master's, Project-, Technician- and PhD students graduated:

PhD students:

→ Helle Østergren Bak (2009-2013).

→ Anne Sørensen (2010-2013).

→ Dennis Larsen (2011-2015).

→ Micke Lisbjerg (2011-2015).

→ Thomas Hensel (2012-2015).

 

Postdocs:

→ Brian Rasmussen

→ Michael Å. Petersen

→ Theis Brock-Nannestad

 

Master students:

→ Denis Trpcevski, Master's student (2009-2011).

→ Thomas Hensel, Master's student (2011-2012).

→ Sanna Lund Diemer, Master's student (2010-2012).

→ Bjarne Enrico Nielsen, Master's student (2011-2013).

→ Micke Lisbjerg, Master's student (2011-2013).

→ Dennis Larsen, Master's student (2011-2013).

→ Hana Al-Kerdi, Master's student (2012-2014).

→ Malene Plesner Master's student (2012-2014).

→ Anne Poulsen Master's student (2012-2014).

→ Zaki Krag Nielsen Master's student (2012-2014).

→ Christopher Lind Master's student (2012-2014).

→ Bo Michael Jessen Master's student (2013-2015).

→ Nicolaj Nylandsted Andersen Master's student (2013-2015).

→ Morten Kristensen Master's student (2013-2015).

→ Line M. Langhorn Master's student (2014-2016).

→ Kristina Eriksen Master's student (2014-2016).

→ Niels Thoftgaard Nielsen Master's student (2014-2016).

→ Olivia Mulvad Akselsen Master's student (2015-2017).

 

Bachelor students:

→ Richard A. Peck (2007)

→ Dennis Larsen (2010).

→ Micke Lisbjerg (2010).

→ Frederik Peter Winblad Nielsen (2010).

→ Bjarne Enrico Nielsen (2010).

→ Zaki Krag Nielsen (2011).

→ Sofie Munk Jørgensen (2011).

→ Christopher Lind (2011).

→ Hana Al-Kerdi (2012).

→ Anne Poulsen (2012).

→ Kristian B. Petersen (2013).

→ Daniel Kamstrup (2013).

→ Bo Michael Jessen (2013).

→ Morten Kristensen (2013).

→ Martin Kilde (2013).

→ Henrik Gotfredsen (2013).

→ Nicolaj Nylandsted Andersen (2013).

→ Anne Kirstine Houborg (2014).

→ Kristina Eriksen (2014).

→ Kåre Vestergård Thomsen (2014).

→ Line Malue Langhorn (2014).

→ Olivia Mulvad Akselsen (2014).

→ Remarh Bsoul (2014).

→ Niels Thoftgaard Nielsen (2014).

→ Sara L. Hammarlund (2015).

→ Mille E. Ottosen (2015).

→ Andreas V. Willems (2015).

→ Morten H. Joensson (2015).

→ Sarangki Yogarasa (2016).

→ Tjalfe Boel Nordhuus (2016).

→ Lau Romlund Halgreen (2016).

→ Nicklas Peter Hovendal (2016).

→ Line Raahauge Soerensen (2016).

→ Sangeetha Karunaharan (2016).

→ August Mandal (2017).

→ Morten Wewers (2017).

→ Cecilie Jensen (2017).

→ Andreas Kjær Ericsen (2017).

→ Nicolai Steen Broberg Hansen (2017).

→ Frederik Dietre (2017).

→ Viktor Bliksted Roug Pedersen (2017).

 

Exchange students (PhD, Erasmus and similar):

→ Shubham Agarwal (India, 2010).

→ Claudia Kleinlein (Germany, 2011-2012).

→ Remi Grosjean (France, 2012).

→ Agata Olszewka (Poland, 2013).

→ Shiba Poudel (Ireland, 2014).

→ Thomas Criton (France (2014).

→ Tristan Delcaillau (France 2014).

→ Tuncay Hatil (Turkey 2014).

→ Emirhan Gurdal (Turkey 2014).

→ Tamara Russ (Germany 2014).

→ Alexandre Wormser (France 2016).

→ Gaelle Esnault (France 2016).

→ Tomas Lizal (Czech 2016).

→ Afra Pazhouhan Fekri (Finland, 2017)

→ Herriett Wall (UK, 2017).

→ Maren Weissenfels (Germany, 2017).

→ Visiting student Anselme Geulin (France, 2018)

→ Visiting student Laurene Mosbach (France, 2018)

→ Visiting student Celine Coueffe (France, 2018)

→ Visiting student Rokas Elijosius (UK/Estonia, 2018).

→ Visiting student Halina Szymanowska (Poland, 2018)

Project students:

→ Hana Al-Kerdi (2012).

→ Anders Bo Skov (2013).

→ Line Malue Langhorn (2014).

→ Olivia Mulvad Akselsen (2014).

→ Emil Hansen (2015).

→ Niels Thoftgaard Nielsen (2015).

→ Sara L. Hammarlund (2015).

→ Mille E. Ottosen (2015).

→ Sarangki Yogarasa (2016).

→ Mads Georg Rasmussen (2016).

→ Frederik Kuhlmann Dietre (2017).

Technician students:

→ Pernille Farver (2008).

→ Kristina Turgeneva (2010).

→ Christian Schwalbe (2012).

→ Barba Petersen (2013).

→ Mehnaz Shafiq (2014).

Michael Pittelkow was born in 1977 and raised in Brøndby Strand, near Copenhagen. He attended Brøndby Strand skole and Ishøj gymnasium before studying chemistry at the University of Copenhagen. At the University of Copenhagen he received his PhD degree in 2006. During his studies he spent extended periods in Australia (CSIRO in Melbourne), The Netherlands (The Technical University of Eindhoven) and England (Cambridge University). He undertook postdoctoral studies in the UK (Cambridge University) before moving back to Denmark to start as an adjunkt (assistant professor) at the department of chemistry, University of Copenhagen in November 2008. In 2012 he became a permanent adjunkt and in 2013 he became associate professor (lektor) at the same department. In 2023 he was promoted to full professor. His current research interests include organic synthesis, physical organic chemistry, aromaticity, chirality and supramolecular chemistry.

Education and Work Experience

Professor, Department of Chemistry, University of Copenhagen. July 2023-.

Associate Professor (Lektor), Department of Chemistry, University of Copenhagen. February 2013-2023.

Assistant Professor (Adjunkt), Department of Chemistry, University of Copenhagen, from November 2012-February 2013.

Assistant Professor (Adjunkt) financed by a Steno fellowship (FNU Fellowship), Department of Chemistry, University of Copenhagen, from November 2008-November 2012. 

Postdoctoral Fellow with Professor Jeremy K. M. Sanders, (FNU Postdoctoral Fellowship), Department of Chemistry, University of Cambridge, UK. November 2006-November 2008. 

Doctoral Student (PhD) with Associate Professor Jørn B. Christensen, Department of Chemistry, University of Copenhagen. PhD awarded November 2006. During this time six months was spend in the research group of Professor Jeremy K. M. Sanders at the Department of Chemistry, University of Cambridge, UK.

Master Student, Department of Chemistry, University of Copenhagen. Master project advisor: Associate Professor Jørn B. Christensen. During this time six months was spend in the research group of Professor E. W. Meijer at the Technical University of Eindhoven, The Netherlands. 

Bachelor Student, Department of Chemistry, University of Copenhagen. Bachelor project advisor: Associate Professor Jørn B. Christensen Worked for six months in the research group of PhD Kevin Winzenberg in the molecular science group at CSIRO in Melbourne, Australia. 

Student, Ishøj Amtsgymnasium, Denmark. 

Primary school (folkeskole), Brøndby Strand skole, Denmark. 

Awards and Honours

‘Lundbeckfondens Talentpris’ 2008, Awarded to scientists under the age of 30.

'Teacher of the year' 2015, Faculty of Science, University of Copenhagen.

'Ellen and Niels Bjerrums Kemikerpris' 2016.

Advanced Synthetic Techniques

7.5 ECTS point course. This course normally runs in early August. This course is available for MSc students at UCPH and for PhD students working with synthetic chemistry (organic/inorganic).

Videos from Synmet:

• Schlenk filtration
• Two-chamber system
• Titration of t-BuLi

Videregående kemisk syntese

15 ECTS point course - block 4. 

Kemisk syntese

7.5 ECTS point course - block 4.

Videregående organisk kemi (kemi VO)

This is a lecture course typically followed by students studying chemistry, medicinal chemistry or nano-science at the University of Copenhagen. The course it taught together with Prof. Mogens Brøndsted Nielsen, and is a 7,5 ECTS point course held in blok 1.

Previous teaching activites:

Kemiske Undervisningsforsøg

7.5 ECTS point course.

2024

98. Reversible Switching Based on Truly Intramolecular Long-Range Proton Transfer─Turning the Theoretical Concept into Experimental Reality

C. Rehhagen, M. A. Argüello, F. S: Kamounah, V. Deneva, A. Angelov, M. Krupp, S. W. Svenningsen, M. Pittelkow, S. Lochbrunner, L. Antonov, J. Am. Chem. Soc. 2024, 146, 2043-2053. https://doi.org/10.1021/jacs.3c10789

2023

97. Sn(IV)-corroles reversibly bind carboxylates in the axial position

H. Ø. Bak,P. Cavigli, A. Bond, T. Brock-Nannestad, M. Pittelkow, E. Iengo , J. Porph. Phthal. 2023, 27, 1416-1424. https://doi.org/10.1142/S1088424623501080

96. Heterocyclic [9]helicenes exhibiting bright circular polarized luminescence

Stefan S. Warthegau, Andreas E. Hillers-Bendtsen, Stephan K. Pedersen, Cecilie Rindom, Christoffer Bræstrup, Jeppe S. Jensen,  Ole Hammerich, Maria S. Thomsen,  Fadhil S. Kamounah, Patrick Norman, Kurt V. Mikkelsen, Theis Brock-Nannestad, Michael Pittelkow, Chem. Eur. J., 2023, e202301815, https://doi.org/10.1002/chem.202301815

This paper has been highlighed in ChemistryViews article.

95. Tautomerism in pyridinyl methyl β-diketones in the liquid and the solid state; a combined computational and experimental study

Mohammad Vakili, Vahidreza Darugar, Fadhil S. Kamounah, Poul Erik Hansen, Mathias Hermann, Michael Pittelkow, J. Mol. Liq., 2023, 383, 122074, https://doi.org/10.1016/j.molliq.2023.122074.

2022

94. Electronic Materials: An Antiaromatic Propeller Made from the Four-Fold Fusion of Tetraoxa[8]circulene and Perylene Diimides

Viktor B. R. Pedersen, Stephan K. Pedersen, Zexin Jin, Nicolaj Kofod, Bo W. Laursen, Glib V. Baryshnikov, Colin Nuckolls, Michael Pittelkow, Angew. Chem. Int. Ed., 2022, 61, 48, e202212293, https://doi.org/10.1002/ange.202212293.

93. Modelling Absorption and Emission Spectroscopies of Symmetric and Asymmetric Azaoxahelicenes in Vacuum and Solution

A. E. Hillers-Bendtsen, Y. Todarwal, M. Pittelkow, P. Norman, K. V. Mikkelsen, J. Phys. Chem. A, 2022, 126, 37, 6467–6472.

92. Barite removal using macropa: simulation and solubility investigations

A. Hassan, F. S. Kamounah, M. Pittelkow, T. Sølling, M. Mahmoud, Energy Fuels, 2022, 36, 16, 9101–9110.

91. The tetrel bonding role in supramolecular aggregation of lead(II) acetate and a thiosemicarbazide derivative

G. Mahmoudi, I. Garcıa-Santos, M. Pittelkow, F. S. Kamounah, E. Zangrando, M. G. Babashkina, A. Frontera, D. A. Safin, 

Acta. Cryst. B, 2022, B78, 685-694.

90. Odd-number cyclo[n]carbons sustaining alternating aromaticity

G. Baryshnikov, R. Valiev, L. Valiulina, A. Kurtsevich, T. Kurtén, D. Sundholm, M. Pittelkow, J. Zhang, H. Agren, J. Phys. Chem. A, 2022, 126, 16, 2445–2452.

2021

89. 7-OH quinoline Schiff bases: are they the long awaited tautomeric bistable switches?

A. Georgiev, D. Yordanov, N. Ivanova, V. Deneva, N. Vassilev, F. S. Kamounah, M.Pittelkow, A. Crochet, K. M. Fromm, L. Antonov, Dyes and Pigments, 2021, 195, 109739.

88. Mechanochemical transformation of CF3 group: Synthesis of amides and Schiff bases

87. Cu-Catalyzed Arylation of Bromo-Difluoro-Acetamides by Aryl Boronic Acids, Aryl Trialkoxysilanes and Dimethyl-Aryl-Sulfonium Salts: New Entries to Aromatic Amides

S. Mkrtchyan, M. Jakubczyk, S. Lanka, M. Pittelkow, V. O. Iaroshenko, Molecules, 2021, 26, 10, 2957. 

86. The Sulfolene Protecting Group: Observation of a Direct Photoinitiated Cheletropic Ring Opening

A. B. Skov, L. M. Folkmann, A. E. Boguslavskiy, A. Röder, R. Lausten, A. Stolow, M. S. Johnson, M. Pittelkow, O. J. Nielsen, T. I. Sølling, T. Hansen, ChemPhotoChem, 2021,5,9, 863-870

85. Azo-hydrazone molecular switches: Synthesis and NMR conformational investigation

A. Kurutos, F. S. Kamounah, G. M. Dobrikov, M. Pittelkow, S. P. A. Sauer, P. E. Hansen, Mag. Res. Chem., 2021, 59,11, 1116-1125.

84. Chirality Amplified: Long, Discrete Helicene Nanoribbons 

X. Xiao, S. K. Pedersen, D. Aranda, J. Yang, R. Wiscons, M. Pittelkow, M. Steigerwald, F. Santoro, N. Schuster, C. Nuckolls, J. Am. Chem. Soc., 2021, 143, 2, 983–991.

83. Dianthracenylazatrioxa[8]circulene: synthesis, characterization and application in OLEDs

S. K. Pedersen, V. B. Pedersen, F. S. Kamounah, L. M. Broløs, G. V. Baryshnikov, R. R. Valiev, K. Ivaniuk, P. Stakhira, B. Minaev, N. Karaush-Karmazin, H. Ågren, M. Pittelkow, Chem. Eur. J., 2021, 27,45, 11609-11617.

2020

82. Triggering G-quadruplex conformation-switching with [7]helicenes

B. Lousen, S. K. Pedersen, D. M. Răsădean, G. D. Pantoş, M. Pittelkow, Chem. Eur. J., 2020, 27,19, 6064-6069.

81. Thermal stabilisation of squaraine dyes by encapsulation in a rotaxane

H. Ø. Bak, B. E. Nielsen, M. Å. Petersen, A. Jeppesen, T. Brock-Nannestad, C. B. O. Nielsen, M. Pittelkow, New J. Chem., 2020, 44, 20930-20934.

80. A fully conjugated planar heterocyclic [9]circulene

S. K. Pedersen, K. Eriksen, H. Aagren, B. Minaev, N. N. Karaush-Karmazin,O. Hammerich, G. V. Baryshnikov, M. Pittelkow, J. Am. Chem. Soc., 2020, 142, 33, 14058–14063.

This paper has been highlighted in: https://www.thieme-connect.de/products/ejournals/abstract/10.1055/s-0040-1705930 

79. Compressing a non-planar aromatic [7]helicene to a planar hetero[8]circulene

B. Lousen, S. K. Pedersen, P. Bols, K. H. Hansen, M. R. Pedersen, O. Hammerich, S. Bondarchuk, B. Minaev, G. V. Baryshnikov, H. Aagren, M. Pittelkow, Chem. Eur. J., 2020, 26, 4935-4940.

78. Antiaromatic vs. induced paratropicity: synthesis and interrogation of a dihydrodiazatrioxa[9]circulene with a proton placed directly above the central ring

S. K. Pedersen, K. Eriksen, N. N. Karaush-Karmazin, B. Mianev, H. Aagren, G. V. Baryshnikov, M. Pittelkow, Angew. Chem. Int. Ed., 2020, 132, 5182-5188.

77. Visualizing 3D Molecular Structures Using an Augmented Reality App

K. Eriksen, B. E: Nielsen, M. Pittelkow, J. Chem. Edu., 2020, 97, 5, 1487-1490.

Preprint: Chemrxiv, 2020.

2019

76. An antiaromatic-walled nanospace

M. Yamashina, Y. Tanaka, R. Lavendomme, T. Ronson, M. Pittelkow, J. R. Nitschke, Nature, 2019, 574, 511-515.

This paper has been highlighed in C&EN.

This paper has been highlighed in this Nature blog.

75. Symmetric, unsymmetrical and asymmetric [7]-, [10]- and [13]helicenes

S. K. Pedersen, K. Eriksen, M. Pittelkow, Angew. Chem. Int. Ed., 2019, 58, 51, 18419-18423.

74. The blue vibronically resolved electroluminescence of azatrioxa[8]circulene

R. R. Valiev, R. M. Gadirov, K. M. Degtyarenko, D. V. Grigoryev, R. T. Nasubullin, G. V. Baryshnikov, B. F. Minaev, S. K. Pedersen, M. Pittelkow, Chem. Phys. lett., 2019, 732, 136667.

73. Entropy/Enthalpy Compensation in Anion Binding: Biotin[6]uril and Biotin-l-sulfoxide[6]uril Reveal Strong Solvent Dependency

N. N. Andersen, K. Eriksen, M. Lisbjerg, M. E. Ottesen, B. O. Milhoej, S. P. A. Sauer, M. Pittelkow, J. Org. Chem., 2019,  2019, 84, 5, 2577–2584.

2018

72. Heavy-atom-substituted nucleobases in photodynamic applications: substitution of sulfur for selenium in 6-thioguanine induces a remarkable increase in the rate of triplet decay in 6-selenoguanine

K. Farrell, M. Brister, M. Pittelkow, T. I. Soelling, C. Crespo-Hernandez, J. Am. Chem. Soc., 2018, 14, 11214-11218.

71. Inverting the selectivity of the Newman-Kwart rearrangement via one electron oxidation at room temperature.

S. K. Pedersen, A. Ulfkjaer, M. N. Newman, S. Yogarasa, A. U. Pedersen, T. I. Soelling, M. Pittelkow, J. Org. Chem., 2018, 83, 12000-12006.

70. Benzylic thio and seleno Newman-Kwart rearrangement.

K. Eriksen, B. E. Nielsen, T. I. Soelling, M. Pittelkow, J. Org. Chem, 2018, 83 (18), 10786-10797.

69. Laser welding of polymers using unsymmetrical squarine dyes.

H. Oestergren Bak, B. E. Nielsen, A. Jeppesen, T. Brock-Nannestad, C. B. O. Nielsen, M. Pittelkow, J. Pol. Sci. Part A, Pol. Chem, 2018, 56, 2245-2254.

68. A gold-nanoparticle stoppered [2]rotaxane.

A Ulfkjaer, F. W. Nielsen, H. Al-Kerdi, T. Russ, Z. K. Nielsen, J. Ulstrup, L. Sun, K. Moth-Poulsen, J. Zhang, M. Pittelkow, Nanoscale, 2018, 10, 9133-9140.

67. A concept for stimulated proton transfer in 1-(phenyldiazenyl)naphthalen-2-ols.

S. Hristova, V. Deneva, M. Pittelkow, A. Crochet, F. S. Kamounah, K. M. Fromm, P. E. Hansen, L. Antonov, Dyes and Pigments, 2018, 156, 91-98.

66. Hemicucurbiturils.

N. N. Andersen, M. Lisbjerg, K. Eriksen, M. Pittelkow, Isr. J. Chem., 2018, 3-4 (58), 435-448.

65. Solvent-Dependent Dual Fluorescence of the Push-Pull System 2-Diethylamino-7-Nitrofluorene.

M. Larsen, A. B. Stephansen, E. Alarousu, M. Pittelkow, O. Mohammed, T. I. Soelling, Phys. Chem. Chem. Phys., 2018, 5942-5951.

64. 1-(Organosulfanyl)-, 1-(Organoselanyl)-, and 1-(Organotellanyl)alk-1-ynes.

A. Ulfkjaer, M. Pittelkow, Science of Synthesis. C, 2017, Accepted for publication.

2017

63. Thiosemicarbazone organocatalysis: tetrahydropyranylation and 2-deoxygalactosylation reactions and kinetic evidence for oxyanion hole-like mechanism.

D. Larsen, L. M. Langhorn, O. M. Akselsen, B. E. Nielsen, M. Pittelkow, Chem. Sci., 2017, 8, 7978-7982.

62. Molecular switching in confined spaces: Effects of encapsulating the DHA/VHF photo-switch in cucurbiturils.

M. Aa. Petersen, B. Rasmussen, N. N. Andersen, S. P. A. Sauer, S. R. Beeren, M. B. Nielsen, M. Pittelkow, Chem. Eur. J., 2017, 23 (67), 1701-17016.

61. Thiosemicarbazone Dynamic Combinatorial Chemistry: Equilibrator-Induced Dynamic State, Formation of Complex Libraries, and a Supramolecular On/Off Switch.

D. Larsen, A. Jeppesen, C. Kleinlein, M. Pittelkow, J. Org. Chem., 2017, 82 (16), 8580-8589.

60. Book chapter: Hemicucurbit[n]uril.

M. Lisbjerg, M. Pittelkow. Comprehensive supramolecular chemistry II, 2017. 

59. New WOLEDs based on pi-extended azatrioxa[8]circulenes.

K. B. Ivaniuk, G. V. Baryshnikov, P. Y. Stakhira, Z. Hotra, S. K. Pedersen, M. Pittelkow, B. F. Minaev, H. Aagren, J. Mater. Chem. C, 2017, 5, 4123-4128.

58. Croconamides: a new dual hydrogen bond donating motif for anion recognition and organocatalysis.

A. Jeppesen, B. E. Nielsen, D. Larsen, O. M. Akselsen, T. I. Soelling, T. Brock-Nannestad, M. Pittelkow, Org. Biomol. Chem., 2017, 15, 2784-2790.

2016

57. Benzoannelated aza-, oxa- and azaoxa[8]circulenes as promising blue organic emitters.

G. V. Baryshnikov, R. R. Valiev, N. N. Karaush, V. A. Minaevaa, A. N. Sinelnikov, S. K. Pedersen, M. Pittelkow, B. F. Minaev, H. Aagren, PCCP, 2016, 18, 28040-28051.

56. Synthetic Receptors for High-Affinity Recognition of O-GlcNAc Derivatives.

P. Rios, T. S. Carter, T. J. Mooibroek, M. P. Crump, M. Lisbjerg, M. Pittelkow, N. T. Supekar, G.-J. Boons, A. P. Davis, Angew. Chem. Int. Ed., 2016, 55 (10), 3387-3392.

55. Review: Synthesis of hetercyclic [8]circulenes and related structures.

T. Hensel, N. N. Andersen, M. Plesner, M. Pittelkow. Synlett, 2016,27(04): 498-525.

2015

54. Simultaneous disulfide and boronic acid ester exchange in dynamic combinatorial libraries.

S. L. Diemer, M. Kristensen, B. Rasmussen, S. R. Beeren, M. Pittelkow. Int. J. Mol. Sci., 2015, 16(9), 21858-21872.

53. Synthesis and properties of unsymmetrical azatrioxa[8]circulenes.

M. Plesner, T. Hensel, B. E. Nielsen, F. S. Kamounah, T. Brock-Nannestad, C. B. Nielsen, C. G. Tortzen, O. Hammerich, M. Pittelkow. Org. Biomol. Chem, 2015, 13, 5937-5943.

This paper has been highlighed in SYNFACTS: T. Swager, M. B. HerbertLin, SYNFACTS, 2015, 11 (7), 709. pdf

52. Biotin[6]uril esters: chloride selective transmembrane anion carriers employing C-H...anion interactions.

M. Lisbjerg, H. Valkenier, B. M. Jessen, H. Al-Kerdi, A. P. Davis, M. Pittelkow. J. Am. Chem. Soc., 2015, 137(15), 4948-4951.

51. 77Se NMR spectroscopy as a sensitive probe for Hammet sigma constants.

A. Sørensen, B. Rasmussen, M. Pittelkow. J. Org. Chem., 2015, 80(8), 3852-3857.

50. New organocatalyst scaffolds with high activity in promoting hydrazone and oxime formation at neutral pH.

D. Larsen, M. Pittelkow, S. Karmakar, E. T. Kool. Org. Lett., 2015, 17(2), 274-277.

49. Anion binding by biotin[6]uril in water.

M. Lisbjerg, B. E. Nielsen, B. O. Milhoej, S. A. P. Sauer, M. Pittelkow. Org. Biomol. Chem., 2015, 13, 369-373.

48. Synthesis and properties of chiral internally branched PAMAM-dendrimers.

J. F. Petersen, M. Pittelkow J. B. Christensen. Tetrahedron, 2015, 71, 1109-1116.

2014

47. M. Pittelkow. Profile: Early Excellence in Physical Organic Chemistry, J. Phys. Org. Chem., 2014, DOI: 10.1002/poc.3327. 

46. Discovery of a cyclic 6+6 hexamer of D-Biotin and formaldehyde [Cover illustration].

M. Lisbjerg, B. M. Jessen, B. Rasmussen, B. E. Nielsen, A. Oe. Madsen, M. Pittelkow. Chem. Sci., 2014, 5 (7), 2647-2650.

This paper has been highlighed in: T. Swager, T. Lin, SYNFACTS, 2014, 10 (9), 921.

45. Dynamic combinatorial chemistry with diselenides and disulfides in water.

B. Rasmussen, A. Sørensen, H. Gotfredsen, M. Pittelkow. Chem. Commun., 2014, 50, 3716-3718.

2013

44. Book chapter: Dynamic combinatorial chemistry.

B. Rasmussen, A. Soerensen, S. R. Beeren, M. Pittelkow, In: Organic Synthesis and Molecular Engineering, John Wiley & Sons, 2013, 393-436.

43. Diazadioxa[8]circulenes: Planar Antiaromatic Cyclooctatetraenes.

T. Hensel, D. Trpcevski, C. Lind, R. Grosjean, P. Hammershøj, C. B. Nielsen, T. Brock-Nannestad, B. E. Nielsen, M. Schau-Magnussen, B. Minaev, G. V. Baryshnikov, M. Pittelkow. Chem. Eur. J., 2013, 19 (50), 17097-17102.

42. Raman spectra of alkyl-substituted azatrioxa[8]circulenes: DFT calculations and experiment.

V. A. Minaeva, B. F. Minaev, G. V. Baryshnikov, M. Pittelkow, Optics and Spectroscopy, 2013, 114, 509-521.

41. The Conversion of Phenols to Selenophenols: The Seleno Newman-Kwart Rearrangement.

A. Sørensen, B. Rasmussen, S. Agarwal, M. Schau-Magnussen, T. I. Sølling, M. Pittelkow. Angew. Chem. Int. Ed., 2013, 52 (47), 12346-12349. 

40. Signal transduction turns on guest binding through structural reconfiguration of triangular helicates.

A. Sørensen, A. M. Castilla, T. Ronson, M. Pittelkow J. R. Nitschke. Angew. Chem. Int. Ed., 2013, 52, 11273-11277.

39. Simple procedures for the preparation of 1,3,5-substituted-2,4,6-trimethoxy-benzenes.

B. E. Nielsen, H. Gotfredsen, B. Rasmussen, C. G. Tortzen, M. Pittelkow. Synlett, 2013, 24 (18), 2437-2442.

38. A variable temperature cell for spectroscopy of thin films.

T. Brock-Nannestad, C. B. Nielsen, H. Oe. Bak, M. Pittelkow. Rev. Sci. Inst., 2013, 84, 046106.

37. The photoinduced transformation of fluorescent DNA base analogue tC triggers DNA melting.

S. Preus, S. Jønck, M. Pittelkow, A. Dierckx, T. Karpkird, B. Albinsson, M. Wilhelmsson. Photochem. Photobiol. Sci., 2013, 12, 1416-1422.

36. The FTIR spectra of substituted tetraoxa[8]circulenes and their assignment based on DFT calculations.

V. A. Minaeva, B. F. Minaev, G. V. Baryshnikov, O. M. Romeyko, M. Pittelkow, Vibr. Spec., 2013, 65, 147-158.

35. Pulling the levers of photophysics: how structure controls the rate of energy dissipation. (back cover illustration)

T. S. Kuhlman, M. Pittelkow, T. I. Sølling, K. B. Møller. Angew. Chem. Int. Ed., 2013, 52 (8), 2247-2250.

34. Azatrioxa[8]circulenes: planar antiaromatic cyclooctatetraenes.

C. B. Nielsen, T. Brock-Nannestad, P. Hammershøj, T. K. Reenberg, M. Schau-Magnussen, D. Trpcevski, T. Hensel, R. Salcedo, G. V. Baryshnikov, B. F. Minaev, M. Pittelkow. Chem. Eur. J., 2013, 19 (12), 3898-3904.

 

2012

33. Raman spectra of tetraoxa[8]circulenes. p-dinaphthalenediphenylenotetrafuran and its tetraalkyl derivatives (DFT study and experiment).

V. A. Minaeva, B. F. Minaev, G. V. Baryshnikov, M. Pittelkow, J. Appl. Spec., 2012, 79, 695-707. 

32. Nucleus-independent chemical shifts criterion of aromaticity in the pi-extended tetraoxa[8]circulenes.

G. V. Baryshnikov, B. F. Minaev, M. Pittelkow, C. B. Nielsen, R. Salcedo, J. Mol. Model., 2013, 19 (2) 847-850. 

31. DFT and QTAIM study of the tetra-tert-butyltetraoxa[8]circulene regioisomers structure.

G. Baryshnikov, B. Minaev, V. Minaeva, A. Baryshnikova, M. Pittelkow, J. Mol. Struct., 2012, 1026, 127-132.

30. A peri-cyclised naphthalene dimer: synthesis and properties of an unusual Vilsmeier-Haack product of 1,3,6,8-tetramethoxy naphthalene. [Cover illustration].

M. Pittelkow, C. B. Nielsen, T. Brock-Nannestad, M. Schau-Magnussen, J. B. Christensen, Eur. J. Org. Chem., 2012, 4931-4936. 

29. Experimental and theoretical study of IR and Raman spectra of tetraoxa[8]circulenes.

V. A. Minaeva, B. F. Minaev, G. V. Baryshnikov, H. Aagren, M. Pittelkow, Vibr. Spec., 2012, 61, 156-166.

2011

28. Tetra-tert-butyltetraoxa[8]circulene and its unusual aggregation behaviour.

T. Brock-Nannestad, C. B. Nielsen, M. Schau-Magnussen, P. Hammershøj, T. K. Reenberg, A. B. Petersen, D. Trpcevski, M. Pittelkow, Eur. J. Org. Chem., 2011, 31, 6320-6325.

27. From static to dynamic: escaping kinetic traps in hydrazone-based dynamic combinatorial libraries.

S. R. Beeren, M. Pittelkow, J. K. M. Sanders, Chem. Commun., 2011, 47, 7359-7361.

26. Metallocorrole dendrimers: sensitive corrole-chromium(V)-nitride spin probes for studying the solution structure of dendrimers.

M. Pittelkow, T. Brock-Nannestad, J. Bendix, J. B. Christensen, Inorg. Chem., 2011, 50 (13), 5867-5869.

2010

25. Organic light-emitting diods from symmetrical and unsymmetrical pi-extended tetraoxa[8]circulenes. [Cover illustration].

C. B. Nielsen, T. Brock-Nannestad, T. K. Reenberg, P. Hammershøj, J. B. Christensen, J. W. Stouwdam, M. Pittelkow, Chem. Eur. J., 2010, 16, 44, 13030-13034.

24. Dynamic combinatorial chemistry with hydrazones: cholate-based building blocks and libraries.

M. G. Simpson, M. Pittelkow, S. P. Watson, J. K. M. Sanders, Org. Biomol. Chem., 2010, 8, 1173-1180.

23. Dynamic combinatorial chemistry with hydrazones: libraries incorporating heterocyclic and steroidal motifs.

M. G. Simpson, M. Pittelkow, S. P. Watson, J. K. M. Sanders, Org. Biomol. Chem., 2010, 8, 1181-1187.

2009

22. Two-phase dynamic combinatorial discovery of a spermine transporter.

R. Pérez-Fernández, M. Pittelkow, A. M. Belenguer, L. Lane, C. V. Robinson, J. K. M. Sanders, Chem. Commun., 2009, 3708-3710.

21. Molecular recognition: minimizing the acid-base interaction of a tunable host-guest system changes the selectivity of binding. [Cover illustration].

M. Pittelkow, C. B. Nielsen, A. Kadziola, J. B. Christensen, J. Incl. Phen. Macr. Chem., 2009, 257-266.

2008

20. Chiral dendrimer encapsulated Pd and Ru nanoparticles.

M. Pittelkow, T. Brock-Nannestad, K. Moth-Poulsen, J. B. Christensen, Chem. Commun., 2008, 2358-2360. 

19. New efficient synthesis of isothiocyanates from amines by di-tert-butylcarbonate.

H. Munch, J. S. Hansen, M. Pittelkow, J. B. Christensen, U. Boas, Tetrahedron Lett., 2008, 3117-3119. 

 

18. Phase-transfer dynamic combinatorial chemistry. [Cover illustration].

R. Pérez-Fernández, M. Pittelkow, A. M. Belenguer, J. K. M. Sanders, Chem. Commun., 2008, 1738-1740.

2007

17. Substituted tetraoxa[8]circulenes.

J. Eskildsen, P. Hammershøj, T. K. Reenberg, U. Larsen, M. Pittelkow, S. M. Leth, R. Peck, J. B. Christensen, Asian Chem. Lett., 2007, 11, 211-218.

16. Mono carbamate protection of aliphatic diamines using alkyl phenyl carbonates.

M. Pittelkow, R. Lewinsky, J. B. Christensen, Org. Synth., 2007, 84, 209-214. 

2006

15. Carbocations in action. Design, synthesis and evaluation of a highly acid sensitive naphthalene based backbone amide linker for solid phase synthesis.

M. Pittelkow, U. Boas, J. B. Christensen, Org. Lett., 2006, 8, 5817-5820.

14. Synthesis and crystal structure of a stable benzo[c]tellurophene, a molecular pyroelectric material.

M. Pittelkow, T. Reenberg, M. Magnussen, K. T. Nielsen, T. I. Sølling, F. C. Krebs, J. B. Christensen, Angew. Chem. Int. Ed., 2006, 45, 5666-5670.

13. Synthesis and properties of 2,3-dialkynyl-1,4-benzoquinones.

P. Hammershøj, T. Reenberg, M. Pittelkow, C. B. Nielsen, O. Hammerich, J. B. Christensen, Eur. J. Org. Chem., 2006, 12, 2786-2794.

2005

12. Synthesis and characterization of water-soluble phenylene-vinylene-based singlet oxygen sensitizers.

C. B. Nielsen, M. Johnsen, J. Arnbjerg, M. Pittelkow, S. P. McIlroy, P. R. Ogilby, M. Jørgensen, J. Org. Chem., 2005, 70, 7065-7079.

11. Substituent effects on the stability of extended benzylic carbocations: a computational study of conjugation.

M. Pittelkow, J. B. Christensen, T. I. Sølling, Org. Biomol. Chem., 2005, 3, 2441-2449.

10. Molecular recognition: comparative study of a tunable guest-host system using a fluorescent model system and CID-mass spectrometry on dendrimers.

M. Pittelkow, C. B. Nielsen, M. A. C. Broeren, J. L. J. van Dongen, M. H. P. van Genderen, E. W. Meijer, J. B. Christensen, Chem. Eur. J., 2005, 11, 5126-5135.

9. 2-(4-Bromophenyl)-1-methyl-1H-phenanthro[9,10-d]imidazole.

C. B. Nielsen, M. Pittelkow, H. O. Sørensen, Acta. Cryst. E., 2005, 61, o955.

8. Convergent synthesis of internally branched PAMAM dendrimers.

M. Pittelkow, J. B. Christensen, Org. Lett., 2005, 7, 1295-1298.

7. 2,5-Dimethoxybenzene-1,4-dicarbaldehyde.

C. B. Nielsen, M. Pittelkow, H. O. Sørensen, Acta. Cryst. E., 2005, 61, o473.

6. Role of peri-effect in synthesis and reactivity of highly substituted naphthaldehydes: a novel backbone amide linker for solid-phase synthesis.

M. Pittelkow, U. Boas, M. Jessing, K. J. Jensen, J. B. Christensen, Org. Biomol. Chem., 2005, 3, 508-514.

2004

5. TFFH as an excellent reagent for acylation of alcohols, thiols and dithiocarbamates.

M. Pittelkow, F. S. Kamounah, U. Boas, B. Pedersen, J. B. Christensen, Synthesis, 2004, 15, 2485-2492.

4. Guest-host chemistry with dendrimers; stable polymer assemblies by rationel design.

M. Pittelkow, J. B. Christensen, E. W. Meijer, J. Polym. Sci. Part A: Polym. Chem., 2004, 3792-3799.

3. Supramolecular chemistry in the gas phase; multivalent dendritic aggregates studied by mass spectrometry. [Cover illustration].

M. A. C. Broeren, J. L. J. van Dongen, M. Pittelkow, J. B. Christensen, M. H. P. van Genderen, E. W. Meijer, Angew. Chem. Int. Ed., 2004, 43, 3557-3562. 

2003

2. PAMAM-dendrimer stabilized Pd(0) nanoparticles as a catalyst for the Suzuki reaction.

M. Pittelkow, K. Moth-Poulsen, U. Boas, J. B. Christensen, Langmuir, 2003, 19, 7682-7684.

2002

1. Selective synthesis of carbamate protected polyamines using alkyl phenyl carbonates.

M. Pittelkow, R. Lewinsky, J. B. Christensen, Synthesis, 2002, 15, 2195-2202.

 

Book chapters/reviews:

5. Hemicucurbiturils.

N. N. Andersen, M. Lisbjerg, K. Eriksen, M. Pittelkow, Isr. J. Chem., 2018, DOI: 10.1002/ijch.201700129. 

4. Book chapter: Hemicucurbit[n]uril.

M. Lisbjerg, M. Pittelkow. Comprehensive supramolecular chemistry II, 2017.

3. 1-(Organosulfanyl)-, 1-(Organoselanyl)-, and 1-(Organotellanyl)alk-1-ynes.

A. Ulfkjaer, M. Pittelkow, Science of Synthesis. C, 2017, Accepted for publication.

2. Review: Synthesis of hetercyclic [8]circulenes and related structures.

T. Hensel, N. N. Andersen, M. Plesner, M. Pittelkow. Synlett, 2016,27(04): 498-525.

1. Dynamic combinatorial chemistry.

B. Rasmussen, A. Sørensen, S. R. Beeren, M. Pittelkow, In: Organic Synthesis and Molecular Engineering, John Wiley & Sons, 2013, 393-436.

 

Patents:

1. A method for laser welding of plastic materials.

H. Oe. Bak, T. Brock-Nannestad, M. Pittelkow, WO 2014/166506 A1 (PCT/DK2014/050096), 2014.

2. Thermally stable NIR dyes for laser welding of plastic materials

A. Jeppesen, B. E: Nielsen, T. Brock-Nannestad, M. Pittelkow, 2017.

 

Other publications

1. Dendrimerer, katalyse og laegemidler.

R. Lewinsky, M. Pittelkow, J. B. Christensen, Dansk Kemi, 2003, 84 (5), 19.

2. On chiral PAMAM dendrimers, naphthalenes and dynamic combinatorial chemistry.

M. Pittelkow. PhD thesis, 2006, 1-216.

3. Strategies for supramolecular chemistry with dendrimers.

M. Pittelkow. Lundbeckfondens årskrift, 2008.

4. Dynamisk kombinatorisk kemi.

M. Pittelkow. Dansk Kemi, 2010, 91 (9), 14-18.

 

For more information about citations etc., see:

http://www.researcherid.com/rid/K-7786-2012