Transfer hydrogenation of various functionalized imines by isopropanol catalyzed by [Ru(CO)2(Ph4C4CO)]2 (3) has been studied. The use of either an oil bath or controlled microwave heating in toluene led to an efficient procedure with high turnover frequencies and the product amines were obtained in high yields. An advantage with catalyst 3 over the conventional [Ru2(CO)4(µ-H)(Ph4C4COHOCC4Ph4)] (1) is the absence of an initiation period, which results in a faster reaction with 3 as compared to 1.Key words: transfer hydrogenation, ruthenium, imines, microwave.
采用异丙醇作为氢源,以[Ru(CO)2(Ph4C4CO)]2 (3)为催化剂,研究了各种官能团化的亚胺的转移氢化反应。在甲苯中使用油浴或控制微波加热,实现了高效的过程,具有高转化频率,并且以高收率获得了产物胺。与传统的[Ru2(CO)4(μ-H)(Ph4C4COHOCC4Ph4)] (1)催化剂相比,催化剂3的一个优点是没有诱导期,这使得与1相比,使用3的反应更快。关键词:转移氢化,钌,亚胺,微波。