960051-00-7Relevant articles and documents
Highly diastereoselective formation of ruthenium complexes for efficient catalytic asymmetric transfer hydrogenation
Baratta, Walter,Chelucci, Giorgio,Herdtweck, Eberhardt,Magnolia, Santo,Siega, Katia,Rigo, Pierluigi
, p. 7651 - 7654 (2007)
(Chemical Equation Presented) Jumping Josiphos! Ruthenium cis-dichloro complexes with matched chiral diphosphane and aminopyridine ligands (see structure) are easily obtained by a one-pot reaction of [RuCl 2(PPh3)3] with a Josiphos diphosphane and racemic 1-substituted 1-(pyridin-2-yl)methanamine ligands. These complexes are highly active catalysts for the transfer hydrogenation of ketones, affording turnover frequencies of up to 70000 h-1 at 60°C and ee values up to 99%.