Reduction of semipolar sulphur linkages with carbodithioic acids and addition of carbodithioic acids to olefins
作者:S. Oae、T. Yagihara、T. Okabe
DOI:10.1016/s0040-4020(01)93661-0
日期:1972.1
Carbodithioic acids react with trivalent sulphur compounds bearing semipolar linkages (sulphoxides, sulphonium ylides and sulphilimines), to give the corresponding sulphides and add to olefins to afford dithioesters. The orientation of olefin addition is controlled by the olefin nature. Michael type addition takes place with olefins bearing an electron-withdrawing group α to the double bond while Markownikoff
碳二硫辛酸与带有半极性键的三价硫化合物(亚砜,酰基和亚硫亚胺)反应,生成相应的硫化物,并加到烯烃中得到二硫酯。烯烃加成的方向由烯烃性质控制。Michael型加成发生在双键带有吸电子基团α的烯烃上,而Markownikoff加成发生在带有电子给体基团的烯烃上。对于乙烯基和烯丙基亚砜,添加和还原同时进行,并获得了新的二硫代酯。