A new class of Rh(III) catalyst containing an aminoalcohol tethered to a tetramethylcyclopentadienyl group for asymmetric transfer hydrogenation of ketones
作者:David J. Cross、Ian Houson、Aparecida M. Kawamoto、Martin Wills
DOI:10.1016/j.tetlet.2003.11.024
日期:2004.1
and application to asymmetric reduction of acetophenone, of a novel class of Rh(III) catalyst containing a tether between the cyclopentadienyl group and a homochiral aminoalcohol, is described. The complex is a highly active catalyst for asymmetric ketone reduction, however it appears to be unstable to the extended reaction conditions. The well-defined stereochemical structure of the catalyst offers
描述了在环戊二烯基和同手性氨基醇之间含有系链的新型Rh(III)催化剂的合成及其在苯乙酮的不对称还原中的应用。该络合物是用于不对称酮还原的高活性催化剂,但是对于扩展的反应条件它似乎是不稳定的。催化剂定义明确的立体化学结构提供了显着改善和针对特定底物进行“微调”的潜力。