Free-radical additions to unsaturated systems. Part XVII. Reaction of trifluoroiodomethane with mixtures of ethylene and vinyl fluoride and of ethylene and propene
作者:R. N. Haszeldine、D. W. Keen、A. E. Tipping
DOI:10.1039/j39700000414
日期:——
: 10. Thermal reactions of trifluoroiodomethane at 200° with the olefins trifluoroethylene, hexafluoropropene, and vinyl chloride give appreciable amounts of 2 : 1 and higher telomers in addition to the 1 : 1 adducts. The extent of telomer formation is much reduced in the case of trifluoroethylene when the reaction is carried out in the presence of added iodine. Competitive reactions of trifluoroiodomethane
三氟碘甲烷与氟乙烯的热反应可得到两种异构体1:1加合物1,1,1,3-四氟-3-碘丙烷和1,1,1,2-四氟-3-碘丙烷的混合物的高收率三氟碘甲烷与丙烯在200°下的反应比例为89:11。根据比例,1:1的加合物1,1,1-三氟-3-碘丁烷和1-碘-2-三氟甲基丙烷的混合物的收率高90:10。三氟碘甲烷在200°C与烯烃三氟乙烯,六氟丙烯和氯乙烯的热反应除可加1:1的加合物外,还可得到2:1和更高的端粒数量。当在添加的碘存在下进行反应时,在三氟乙烯的情况下,端粒形成的程度大大降低。