The reactivity of the highly functionalized copper, zinc reagents RCu(CN)ZnI toward 1-haloalkynes and acetylenic esters
作者:Ming Chang P. Yeh、Paul Knochel
DOI:10.1016/s0040-4039(01)80511-6
日期:1989.1
The highly functionalized organometallics RCu(CN)ZnI 1 react efficiently with 1-haloalkynes providing polyfunctionalized alkynes in high yields. This method has been used to prepare a pheromone of the Amathes c-nigrum in 3 steps and 64% overall yield. The reagents 1 also add in the presence of an excess of Me3SiCl to acetylenic esters to afford polyfunctionalized C—silylated ethylenic esters. In the
高度官能化的有机金属化合物RCu(CN)ZnI 1与1-卤代炔烃有效反应,从而以高收率提供多官能团炔烃。该方法已被用于分3步制备Amathes c-igigrum的信息素,总产率为64%。试剂1还在过量的Me 3 SiCl存在下添加至炔属酯中,以提供多官能化的C-甲硅烷基化的烯属酯。在丙酸乙酯的情况下,该反应是高度立体选择性的,并提供97%纯的(E)-2-三甲基甲硅烷基乙烯酯。