Organozinc reagents in synthesis: the facile generation of 2-(trialkylsilyl)prop-2-enylzinc from 2-bromo-1-trimethylsilylprop-2-ene
作者:James J. Eshelby、Philip J. Parsons、Patrick J. Crowley
DOI:10.1039/p19960000191
日期:——
A range of electrophiles react with 2-(trimethylsilyl)prop-2-enylzinc chloride, which is prepared by sequentially treating 2-bromo-1-trimethylsilylprop-2-ene with ButLi and then zinc chloride. The addition of transition metal catalysts can alter the reactivity of the organometallic compound from prop-2-enylation to prop-1-en-2-ylation.
一系列亲电体可与 2-(三甲基硅基)丙-2-烯基氯化锌发生反应,而 2-(三甲基硅基)丙-2-烯基氯化锌是先用丁锂处理 2-溴-1-三甲基硅基丙-2-烯,然后再用氯化锌处理 2-溴-1-三甲基硅基丙-2-烯。过渡金属催化剂的加入可以改变有机金属化合物的反应活性,使其从丙-2-烯基化反应转变为丙-1-烯-2-基化反应。