申请人:FMC Corporation
公开号:US04070404A1
公开(公告)日:1978-01-24
1,1-Dihalo-4-methyl-1,3-pentadienes, key intermediates in the synthesis of insecticidal dihalovinylcyclopropanecarboxylates, result from the condensation of 3-methyl-1-butene with a carbon tetrahalide in the presence of a catalyst, followed by the base-induced dehydrohalogenation of the 1,1,1,3-tetrahalo-4-methylpentane resulting from the condensation.
1,1-二卤代-4-甲基-1,3-戊二烯是合成杀虫双卤乙烯环丙氨酸的关键中间体,其由3-甲基-1-丁烯与碳四卤化物在催化剂存在下缩合,随后在碱的作用下脱卤化生成1,1,1,3-四卤代-4-甲基戊烷。