On the NH Effect in Ruthenium-Catalysed Hydrogenation of Ketones: Rational Design of Phosphine-Amino-Alcohol Ligands for Asymmetric Hydrogenation of Ketones
作者:Scott D. Phillips、José A. Fuentes、Matthew L. Clarke
DOI:10.1002/chem.201000790
日期:2010.7.19
Redesign and reduce: The graphic shows some Ru complexes of tridentate ligands that do not contain NH substituents but can catalyse ketone reduction with zero‐order dependence on ketone. In tridentate systems, a secondary amine, not a primary amine, promotes hydrogen activation. Leading on from these observations, the Ru complex of a phosphine‐amino‐alcohol shown above has been found to be a good hydrogenation