An efficient radical chlorosulfonylation of allenes was disclosed and vinylsulfones were prepared smoothly under mild conditions. By using sodium sulfinates as radical precursors, iron(III) chloride hexahydrate (FeCl3·6H2O) as oxidant and chloride source, allenes were converted into (E)-α-chloromethyl vinylsulfones via regioselective 1,2-radical difunctionalization process in moderate to good yields
公开了
丙二烯的有效自由基
氯磺酰化,并在温和条件下顺利制备
乙烯基砜。以亚
磺酸钠为自由基前体,
氯化
铁(III)六
水合物(FeCl 3 ·6H 2 O)为氧化剂和
氯化物源,通过区域选择性1,2-自由基双官能化过程将
丙二烯转化为(E)-α-
氯甲基
乙烯基砜。中等至良好的产量。