Polyfluoroalkyl compounds of silicon. Part XII. Reactions of trichlorosilane with 2-chloro- and 2-bromo-1,1-difluoroethylene
作者:William I. Bevan、Robert N. Haszeldine、John Middleton、Anthony E. Tipping
DOI:10.1039/dt9740002305
日期:——
Photochemical reaction of an excess of trichlorosilane with 2-chloro-1,1-difluoroethylene gives trichloro-(2,2-difluoroethyl)silane as the major product, and smaller amounts of trichloro-(1,1-difluoroethyl)silane and trichloro-(2-chloro-2,2-difluoroethyl)silane, whereas reaction with an excess of olefin present gives mainly trichloro-(2-chloro-2,2-difluoroethyl)silane together with trichloro-(2-chloro-1
过量的三氯硅烷与2-氯-1,1-二氟乙烯的光化学反应以三氯-(2,2-二氟乙基)硅烷为主要产物,少量三氯-(1,1-二氟乙基)硅烷和三氯(2-氯-2,2-二氟乙基)硅烷,而与过量烯烃的反应则主要产生三氯-(2-氯-2,2-二氟乙基)硅烷和三氯-(2-氯-1,1-二氟乙基)硅烷。通过在CF 2基团向2-氯-1,1-二氟乙烯中最初的三氯甲硅烷基自由基加成,以及烯烃竞争性还原为1,1-二氟乙烯,然后在CH 2处三氯甲硅烷基自由基加成中,解释了这些产物的形成。团体。三氯硅烷与2-溴-1,1-二氟乙烯的光化学反应得到还原的烯烃1,1-二氟乙烯和2,2-二氟乙基-和2-溴-2,2-二氟乙基-三氯硅烷。