The activation of CBr4 and CCl4 by a bimetallic iron/copper couple in acetonitrile is a new, inexpensive, nontoxic and efficient procedure for gem-dibromo- and gem-dichloromethylenation of nucleophilic alkenes. This new route to gem-dihalocyclopropanes involves dihalocarbene species.
CBR的活化4和CCl 4通过双
金属
铁/
铜偶在
乙腈为一个新的,便宜的,无毒的和有效的程序宝石-dibromo-和宝石亲核烯烃-dichloromethylenation。这种通往宝石-二卤代
环丙烷的新途径涉及二卤卡宾类。