A highly efficient and operationally simple method for the synthesis of β-sulfinyl alkenylsulfones through a BF3·OEt2-promoted reaction of alkynes and sodium sulfinates is developed, successfully avoiding the complicated anhydrous treatment before the reaction and greatly simplifying the reaction conditions. As a facile and selective route to the targets, it features good functional group compatibility
开发了一种高效、操作简单的通过BF 3 ·OEt 2促进的
炔烃与亚
磺酸钠反应合成β-亚磺酰基烯基砜的方法,成功避免了反应前复杂的无
水处理,大大简化了反应条件。作为一种简便、选择性的目标途径,它具有良好的官能团兼容性、温和的条件、易得的起始原料和优异的产率。值得注意的是,溶剂中的微量
水对反应起到了关键的促进作用,这为BF 3 ·OEt 2催化体系的利用提供了更实用的途径。