A simple, novel, and highly regioselective cleavage of epoxides into vicinal halo alcohols and symmetrical or unsymmetrical dihalides is described using different stoichiometries of triphenylphosphine (PPh3) and N-halo succinimide (NXS) or N-halo saccharine (NXSac).Key words: N-halo succinimide (NXS), N-halo saccharine (NXSac), triphenylphosphine (PPh3), epoxide, vic-halo alcohol, symmetrical dihalide, unsymmetrical dihalide.
一种简单、新颖且高选择性的环氧化物裂解方法被描述为利用三苯基膦(PPh3)和N-卤代琥珀酰亚胺(NXS)或N-卤代糖精(NXSac)的不同化学计量比来制备邻卤代醇和对称或非对称二卤代物。关键词:N-卤代琥珀酰亚胺(NXS)、N-卤代糖精(NXSac)、三苯基膦(PPh3)、环氧化物、邻卤代醇、对称二卤代物、非对称二卤代物。