Aminophosphine ligands R2P(CH2)nNH2 and ruthenium hydrogenation catalysts RuCl2(R2P(CH2)nNH2)2
作者:Wenli Jia、Xuanhua Chen、Rongwei Guo、Christine Sui-Seng、Dino Amoroso、Alan J. Lough、Kamaluddin Abdur-Rashid
DOI:10.1039/b911459a
日期:——
The aminophosphine ligands R2P(CH2)2NH2 and R2P(CH2)3NH2 (R = Ph, iPr, tBu) were isolated in good to excellent yields from the reaction of LiPR2 with Cl(CH2)2N(TMS)2 and Cl(CH2)3N(TMS)2, respectively, followed by hydrolysis. This approach allows fine tuning of the ligands' stereoelectronic properties through the variation of the substituents on the phosphine. The aminophosphine ligands were used to prepare the ruthenium complexes RuCl2(R2P(CH2)2NH2)2 and RuCl2(R2P(CH2)3NH2)2 by reacting a 2:1 mixture of the respective ligand and [RuCl2(cod)]n in an appropriate solvent. The resulting complexes were found to be excellent catalysts for the hydrogenation of ketones and imines.
Borah, Geetika; Boruah, Devajani, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical
作者:Borah, Geetika、Boruah, Devajani
DOI:——
日期:——
HYDROGENATION OF ESTERS WITH RU/BIDENTATE LIGANDS COMPLEXES
申请人:SAUDAN Lionel
公开号:US20080071121A1
公开(公告)日:2008-03-20
The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Ru complexes with bidentate ligands, having one amino or imino coordinating group and one phosphino coordinating group, in hydrogenation processes for the reduction of esters or lactones into the corresponding alcohol or diol respectively.