Novel Dendritic Ligands of Chiral 1,2-Diamine and Their Application in Asymmetric Hydrogenation of Simple Aryl Ketones<b />
作者:Jingen Deng、Weiguo Liu、Xin Cui、Linfeng Cun、Jun Wu、Jin Zhu、Qinghua Fan
DOI:10.1055/s-2005-869862
日期:——
Novel dendritic chiral vicinal diamine ligands have been synthesized and a series of dendritic Ru(BINAP)(diamine) catalysts were developed for asymmetric hydrogenation of a variety of simple aryl ketones in good catalyticactivity and high enantioselectivity, as well as facile catalyst recycling. An increase of enantio-selectivities was obtained by using the dendritic catalysts compared with Noyori
合成了新型树枝状手性邻位二胺配体,并开发了一系列树枝状 Ru(BINAP)(二胺) 催化剂,用于多种简单芳基酮的不对称氢化,具有良好的催化活性和高对映选择性,以及催化剂的方便回收。在相同条件下,在几种底物的情况下,与 Noyori 催化剂相比,通过使用树枝状催化剂获得了对映选择性的增加。同时,观察到对催化活性和对映选择性以及再利用的显着结构影响。