Carbene chemistry. Part 13 [1]. Preparation of sole fluoroallenes by a carbene route, and the reaction of allenes with halogenocarbenes
作者:Michael J. Bunegar、Roy Fields、Robert N. Haszeldine
DOI:10.1016/s0022-1139(00)85226-4
日期:1980.6
Fluoroallene and 1, 3-difluoroallene are prepared in good overall yield by the addition of dichlorocarbene to vinyl fluoride and 1, 2-difluoroethylene respectively, followed by pyrolysis of the dichlorocyclopropanes and treatment of the resulting dichloropropenes with zinc. Pyrolysis of 1, 1-dichloro-2-fluorocyclopropane over zinc gives fluoroallene directly.
通过分别向
氟乙烯和
1,2-二氟乙烯中加入二
氯卡宾,然后将二
氯环丙烷热解并用
锌处理所得的
二氯丙烯,以高的总收率制备
氟丙二烯和1,3-二
氟丙二烯。1,1-二
氯-2-
氟环丙烷在
锌上的热解直接生成
氟代亚芳基。