Chiral diphosphine ligands based on camphor: synthesis and applications in asymmetric hydrogenations
作者:Renat Kadyrov、Ilyas Z. Ilaldinov、Juan Almena、Axel Monsees、Thomas H. Riermeier
DOI:10.1016/j.tetlet.2005.08.103
日期:2005.10
The synthesis of a novel class of atropisomer chiral diphosphineligands with a bornene framework is described. The new ligands showed in Rh catalyzed asymmetric hydrogenation of α- and β-enamides very high ee’s (more than 99%).
Cycloolefin phosphine ligands and their use in catalysis
申请人:Degussa AG
公开号:EP1595888A1
公开(公告)日:2005-11-16
The present invention concerns novel bidentante optionally N-containing P-ligands of general formula (I)
embracing a two-ring-system and processes for synthesizing them, transition metal complexes of these compounds and their use as catalysts.
Mechanistic Studies on Rhodium-Catalyzed Enantioselective Silylation of Aryl C–H Bonds
作者:Taegyo Lee、John F. Hartwig
DOI:10.1021/jacs.7b00737
日期:2017.4.5
Several classes of enantioselective silylations of C-H bonds have been reported recently, but little mechanistic data on these processes are available. We report mechanistic studies on the rhodium-catalyzed, enantioselective silylation of aryl C-H bonds. A rhodium silyl dihydride and a rhodium norbornyl complex were prepared and determined to be interconverting catalyst resting states. Kinetic isotope