Regioselective control of allyl anions with cadmium chloride: α γ condensation with aldehydes
作者:Lei Bo、Alex G Fallis
DOI:10.1016/s0040-4039(00)85166-7
日期:1986.1
A general method for directing the condensation of allyl anions such as with aldehydes preferentially to the γ position of the unsaturated nucleophile is described. The procedure employs cadmium chloride to control the regioselectivity and will facilitate the extended use of vinylogous anions in synthesis.
描述了将烯丙基阴离子例如与醛的缩合优先引导至不饱和亲核体的γ位置的一般方法。该方法采用氯化镉来控制区域选择性,并有利于乙烯基阴离子在合成中的广泛使用。