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Start Over Author "Andreas Schumacher" Journal angewandte chemie
3 results on '"Andreas Schumacher"'

1. Chiral N-Heterocyclic Carbene/Pyridine Ligands for the Iridium-Catalyzed Asymmetric Hydrogenation of Olefins

Author

Maurizio Bernasconi, Andreas Schumacher, and Andreas Pfaltz

Subjects
chemistry.chemical_classification, Alkene, Hydride, 010405 organic chemistry, Asymmetric hydrogenation, Enantioselective synthesis, chemistry.chemical_element, General Chemistry, General Medicine, 010402 general chemistry, Medicinal chemistry, 01 natural sciences, Catalysis, 0104 chemical sciences, 3. Good health, chemistry.chemical_compound, chemistry, Pyridine, Organic chemistry, Iridium, Carbene
Abstract

Swapping N,P for C,N: Iridium complexes of bidentate pyridine-based C,N ligands with an N-heterocylic carbene (NHC) unit proved to be efficient and highly enantioselective hydrogenation catalysts. As a result of the lower acidity of iridium hydride intermediates produced from NHC-based complexes, these catalysts are much better suited than analogous N,P-ligand complexes for the hydrogenation of acid-sensitive substrates.

Published
2013
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