Indium(I) iodide promoted cleavage of dialkyl disulfides Application of the Michael addition of thiolate anions to conjugated carbonyl compounds and regioselective ring opening of epoxides
作者:Brindaban C Ranu、Tanmay Mandal
DOI:10.1139/v06-065
日期:2006.5.1
promotes cleavage of dialkyl disulfides generating thiolate anions that then undergo facile addition to α,β-unsaturated ketones, aldehydes, carboxylic esters, and nitriles under neutral conditions producing corresponding β-ketosulfides or β-cyanosulfides. This strategy has also been used for the regioselective nucleophilic ring opening of epoxides by thiolate anions in presence of indium(III) chloride producing
碘化铟 (I) 促进二烷基二硫化物的裂解,生成硫醇阴离子,然后在中性条件下轻松加成到 α,β-不饱和酮、醛、羧酸酯和腈,产生相应的 β-酮硫化物或 β-氰基硫化物。该策略也已用于在氯化铟 (III) 存在下通过硫醇阴离子对环氧化物进行区域选择性亲核开环,产生相应的 β-羟基苯基硫化物。反应通常非常干净、产率高且相当快。因此,利用这种裂解反应开发了合成 β-酮硫化物或 β-氰基硫化物和 β-羟烷基硫化物的简便方法。环氧化物,β-羟基硫化物。