photoredox-mediated processes are not amenable to aryl radical addition to trifluoromethyl alkenes. A metal-free, functional group-tolerant method for the preparation of benzylic gem-difluoroalkenes is described. Halogen atom abstraction from (hetero)aryl halides generates aryl radicals that undergo a defluorinative arylation of α-trifluoromethyl alkenes, tolerating electronically disparate aryl radicals and α-trifluoromethyl
获取宝石-二
氟烯烃的文献方法主要限于苛刻的基于有机
金属的方法,并且已知的光氧化还原介导的方法不适合将芳基自由基加成到三
氟甲基烯烃中。描述了用于制备苄基宝石-二
氟烯烃的无
金属,耐官能团的方法。从(杂)芳基卤化物中提取卤素原子会生成芳基,这些芳基会经历α-三
氟甲基烯烃的脱
氟芳基化反应,从而可以耐受电子上互不相同的芳基和α-三
氟甲基烯烃。