Description: Homogeneous- and enzymatic catalysis are in many respects complementary. Upon anchoring an organometallic complex into a host protein, we create artificial metalloenzymes with properties reminiscent of both kingdoms. By exploiting the biotin (strept)avidin technology to incorporate an achiral catalyst precursor within a protein host, we have recently reported on enantioselective hydrogenation and transfer-hydrogenation reactions. A combined chemogenetic procedure allows us to rapidly optimize the selectivity of the artificial metalloenzymes (up to 96Prozent ee). Current challenges for this funding period include: I) The implementation of directed evolution protocols towards the optimization of artificial metalloenzymes. Ii) Enantioselective oxidation reactions (epoxidation, oxidation of sulfides and kinetic resolution of racemic alcohols). Iii) Palladium catalyzed C-C bond forming reactions (Suzuki coupling and allylic alkylation).
SupportProgram
Origins: /Bund/UBA/UFORDAT
Tags: Palladium ? Sulfid ? Alkohol ? Katalysator ? Vorläufersubstanz ? Alkylierung ? Evolution ? Hydrierung ? Oxidation ? Protein ? Technik ? Finanzierung ? BEZUG ? Buchgrundstück ? DAUER ? GEKOPPELT ? GEMISCHT ? Katalyse ? NEU ? Selektivität ? VERSCHIEBUNG ? ZEITRAEUME ?
License: cc-by-nc-nd/4.0
Language: Englisch/English
Time ranges: 2006-10-01 - 2009-09-30
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