Journal of Molecular Catalysis A-Chemical, Vol.209, No.1-2, 19-22, 2004
New chiral ferrocenyldiphosphine ligand for catalytic asymmetric transfer hydrogenation
New chiral ferrocenyldiphosphine ligands (R)-(S)-3 and (R)-(S)-4 were prepared. The ligands were employed in Ru(II) catalyzed asymmetric transfer hydrogenation of ketones to give corresponding secondary alcohols. Up to 99% conversion with 90% e.e. was obtained on Ru(DMSO)(4)Cl-2/4 in transfer hydrogenation of acetophenones with propan-2-ol. (C) 2003 Elsevier B.V. All rights reserved.
Keywords:ferrocenyldiphosphine;transfer hydrogenation;(R)-N-(2-(diphenylphosphino)benzylidene)-1-((S)-2-(diphenylphosphino)fer rocenyl)ethylamine