Mirza Cokoja

Supramolecular Catalysis

We are working on the development of catalysts for biphasic organic reactions (epoxidations, cyclopropanations, CO2 valorization, hydrogenations, etc.). We use molecular surface-active ionic liquid (SAIL) catalysts, which aggregate in solution via supramolecular interactions, e.g. as micelles in water. The self-assembled supramolecular aggregates serve as host matrices for both the catalyst and the substrate, thus acting as “nanoreactors”. Our goal is to design multifunctional catalysts with modulated functionality and geometry to optimize the activity and to understand and control the product selectivity. Long-term stability and reusability of the SAIL catalysts is a particular focus aiming at applicability beyond the lab scale.

Key publications:

Activation of hydrogen peroxide by the nitrate anion in micellar media, F. Schmidt, B. Zehner, M. Kaposi, M. Drees, J. Mink, W. Korth, A. Jess, M. Cokoja,* Green Chem. 202123, 1965–1971.

Supramolecular concepts for the biphasic epoxidation of olefins using aqueous hydrogen peroxide, F. Schmidt, M. Cokoja,* Green Chem. 202123, 708–722.

Ionic liquid surfactants as multitasking micellar catalysts for epoxidations in water, F. Schmidt, B. Zehner, W. Korth, A. Jess, M. Cokoja,* Catal. Sci. Technol. 202010, 4448–4457.