A new chiral dipyridylphosphine ligand Xyl-P-Phos and its application in the Ru-catalyzed asymmetric hydrogenation of β-ketoesters
作者:Jing Wu、Hua Chen、Wai Him Kwok、Kim Hung Lam、Zhong Yuan Zhou、Chi Hung Yeung、Albert S.C Chan
DOI:10.1016/s0040-4039(02)00062-x
日期:2002.2
A new chiral dipyridylphosphine ligand Xyl-P-Phos has been synthesized and the structure of (S)-Xyl-P-Phos oxide has been characterized by single crystal X-ray diffraction. The ruthenium complex of this ligand, Ru(R-Xyl-P-Phos)(C6H6)Cl2, has been found to be a highly active, enantioselective and air-stable catalyst for the asymmetric hydrogenation of β-ketoesters and shows good potential for industrial
合成了一种新的手性二吡啶基膦配体Xyl-P-Phos,并通过单晶X射线衍射表征了(S)-Xyl-P-Phos氧化物的结构。已发现该配体的钌配合物Ru(R -Xyl-P-Phos)(C 6 H 6)Cl 2是高活性,对映选择性和空气稳定的催化剂,可用于β-酮酸酯和不对称酮的不对称氢化。在工业应用中显示出良好的潜力。