Free-radical addition to olefins. Part VII. Addition of trichloromethyl radicals to chloro-olefins
作者:D. P. Johari、H. W. Sidebottom、J. M. Tedder、J. C. Walton
DOI:10.1039/j29710000095
日期:——
BrCXCX2 respectively, where CXClCX2 represents the original chloro-ethylene. The rate of trichloromethyl radical addition to a chlorine-substituted site is slower than the rate of addition at CF2 and much slower than addition to CH2. Arrhenius parameters for the addition of CCl3· to the CH2 end of vinyl chloride have been measured:
在气相实验中已经研究了光化学诱导将溴代三氯甲烷添加到一系列氯取代的乙烯中。加成不带氯原子的烯烃的碳原子会导致形成正常的加合物。当在带有氯原子的碳原子上发生三氯甲基自由基或溴原子的加成时,主要产物分别为CCl 2 CX CX 2和BrCX CX 2,其中CXCl CX 2代表原始的氯乙烯。三氯甲基自由基加到氯取代位的速率比在CF 2下的速率慢,比加到CH的速率慢得多2。已测量了向氯乙烯的CH 2末端添加CCl 3 ·的Arrhenius参数: