Facile Access to Benzothiophenes through Metal-Free Iodine-Catalyzed Intermolecular Cyclization of Thiophenols and Alkynes
作者:Daoshan Yang、Hua Wang、Kelu Yan、Mengqi Zhang、Wei Wei、Yao Liu、Laijin Tian
DOI:10.1055/s-0034-1378841
日期:——
A novel iodine-catalyzed method for the synthesis of benzothiophene derivatives through cascade reactions of substituted thiophenols with alkynes has been demonstrated under metal- and solvent-free conditions. The present protocol uses inexpensive and environmentally friendly molecular iodine as the catalyst, and the corresponding products are obtained in moderate to excellent yields. Such an efficient
在无金属和无溶剂条件下,证明了一种通过取代苯硫酚与炔烃的级联反应合成苯并噻吩衍生物的新型碘催化方法。本协议使用廉价且环保的分子碘作为催化剂, 并以中等至优良的收率获得相应的产品。这种高效、经济和绿色的转化应该为有机和药物化学中的各种苯并噻吩提供一种有吸引力的方法。