α-Halo-α-methylthio-β-ketosulfones containing a quaternary halocarbon stereocenter were prepared via selective demethyl oxidative halogenations of diacyl dimethylsulfonium methylides in moderate to excellent yields (39 examples; up to 98%). The current protocols directly and efficiently introduce a halogen atom into organic compounds with high functional group tolerance under metal-free conditions
α-卤代-α-甲
硫基-β-酮砜含有季卤碳立构中心,通过选择性脱甲基氧化卤化二酰基
二甲基硫甲基化物,以中等至优异的收率(39 个实例;高达 98%)制备。目前的协议在无
金属条件下直接有效地将卤素原子引入具有高官能团耐受性的有机化合物中。