Lab 215

Tel.: (0049) 221-470-3256

Fax : (0049) 221 470 1166

Email: m.kleczka@uni-koeln.de

 

 

Ph.D. Thesis: Photooxygenation with Singlet Oxygen

Master Thesis: “Photooxygenierung von Diencarbonsäureestern: a- versus g-Effekt“

- "Two useful directing modes in singlet oxygen reactivity: electrostatic effects in the ene reaction with allylic alcoholates and chemoselectivity change with a-alkoxy Michael esters" Margarethe Kleczka, Diana But, Dominik Dyllong, Caroline Fendinger, Verena Marmann, Christian Wartke, and Axel G. Griesbeck, ChemPhotoChem 2018, 2, in the print.

- "General Concepts in Catalytic Oxidation: Photocatalytic Oxidation" Axel G. Griesbeck, Sarah Sillner und Margarethe Kleczka, in Science of Synthesis (SOS) Reference Library, 2017.

- "Strong asymmetry in perepoxide bifurcation mechanism: the large-group effect in the singlet oxygen ene Reaction with allylic alcohols" Axel G. Griesbeck, Bernd Goldfuss, Christina Jäger, Tim Lippold, Eric Brüllingen, Margarethe Kleczka, ChemPhotoChem 2017, 1, http://dx.doi.org/10.1002/cptc.201600041.

- "Synthetic approaches to mono- and bicyclic perortho-esters with a central 1,2,4-trioxane ring as the privileged lead structure in antimalarial and antitumor-active peroxides and clarification of the peroxide relevance" Axel G. Griesbeck, Maria Bräutigam, Margarethe Kleczka, Angela Raabe, Molecules 2017, 22, 110, doi: 10.3390/molecules22010119.

- "Singlet Oxygen as a Reagent in Organic Synthesis" Axel G. Griesbeck, Sarah Sillner and Margarethe Kleczka, in Singlet Oxygen - Applications in Biosciences and Nanosciences, Santi Nonell and Christina Flors, Eds., Section III, Chapter 19, Royal Society of Chemistry, 2016, 369-392.

- "Studies towards the synthetic applicability of biocatalytic allylic oxidations with the lyophilisate of Pleurotus sapidus" Verena Weidmann, Serge Kliewer, Marco Sick, Sergej Bycinskij, Margarethe Kleczka, Julia Rehbein, Axel G. Griesbeck, Holger Zorn und Wolfgang Maison, Journal of Molecular Catalysis B: Enzymatic 2015, 121, 15-21.

- "Singlet Oxygen and Natural Substrates: Functional Polyunsaturated Models for the Photooxidative Degradation of Carotenoids" Axel G. Griesbeck, Margarethe Kleczka, Alan de Kiff, Moritz Vollmer, Angelika Eske und Sarah Sillner, Pure Appl. Chem. 2015, 87, 639-647.

- "Tetraphenylporphyrin-catalyzed tandem-photooxygenation of polyenes and 1,4-dienes: multiple and diverse oxyfunctionalizations", Axel G. Griesbeck, Alan de Kiff und Margarethe Kleczka, Adv. Syn. Cat. 2014, 356, 2839-2845.

- "Ene-Diene Transmissive Cycloaddition Reactions with Singlet Oxygen: The Vinylogous Gem Effect and its Use for Polyoxyfunctionalization of Dienes" Angelika Eske, Bernd Goldfuss, Axel G. Griesbeck, Alan de Kiff, Margarethe Kleczka, Matthias Leven, Jörg M. Neudörfl and Moritz Vollmer, J. Org. Chem. 2014, 79, 1818-1829.

- "Stereoselective Synthesis of Proline-Derives Dipeptide Scaffolds (ProM-3 and ProM-7) Rigidified in a PPH Helix Conformation" Cédric Reuter, Margarethe Kleczka, Sarah de Mazancourt, Jörg.-M. Neudörfl, R. Kühne and Hans-Günther Schmalz, Eur. J. Org. Chem. 2014, 2664-2667.

- "Synthetic Organic photochemistry – Grown up and applicable for life sciences" Axel G. Griesbeck, Maria Bräutigam, Sebastian Hanft, Margarethe Kleczka, Sabrina Molitor, Melissa Reckenthäler und Sarah Sillner, European Photochemical Society Newsletter 2013, 12-22.