Acid-Catalyzed Oxidative Addition of Thiols to Olefins and Alkynes for a One-Pot Entry to Sulfoxides
作者:Martin Klussmann、Hui-Lan Yue
DOI:10.1055/s-0035-1562480
日期:——
An oxidative variant of the thiol-ene reaction has been developed, achieving the direct addition of thiols to olefins to form sulfoxides. The reaction uses tert-butyl hydroperoxide as oxidant and methanesulfonic acid as catalyst. The latter is believed to catalyze the oxidation of the intermediate sulfide to the sulfoxide. No special precautions are necessary to exclude oxygen, yet the products are
已开发出硫醇-烯反应的氧化变体,实现了硫醇与烯烃的直接加成以形成亚砜。该反应以叔丁基过氧化氢为氧化剂,甲磺酸为催化剂。据信后者催化中间体硫化物氧化成亚砜。不需要特殊的预防措施来排除氧气,但产物在 β 位没有氧化的情况下形成。苯乙烯、丙烯酸衍生物、炔烃和苯硫酚的产率最高,而脂肪族烯烃和硫醇的效果较差。