Ionic Liquid-Mediated One-Pot 3-Acylimino-3<i>H</i>-1,2-dithiole Synthesis from Thiocarboxylic Acids and Alkynylnitriles via In Situ Generation of Disulfide Intermediates
作者:Chandresh Kumari、Avijit Goswami
DOI:10.1021/acs.joc.2c00301
日期:2022.7.1
derivatives via a metal-free annulation reaction of alkynylnitriles with thiocarboxylic acids mediated by ionic liquids [BMIM]Br has been reported. This operationally simple protocol offers an easy and rapid access to a library of dithiol derivatives in moderate to good yields. The mechanistic studies show a benzoyldithio anion addition to alkynylnitriles followed by an annulation reaction through the involvement
已经报道了一种实用且直接的策略,用于通过离子液体 [BMIM]Br 介导的炔基腈与硫代羧酸的无金属环化反应合成 3-acylimino-3 H -1,2-dithiol 衍生物。这种操作简单的协议提供了一种以中等至良好的产量轻松快速地访问二硫醇衍生物库的方法。机理研究表明,苯甲酰二硫代阴离子加成到炔基腈中,然后通过作为关键中间体的二硫化物部分参与环化反应。