One-pot tandem reactions for direct conversion of thiols and disulfides to sulfonic esters, and Paal–Knorr synthesis of pyrrole derivatives catalyzed by TCCA
作者:Saba Hemmati、Mohammad Majid Mojtahedi、Mohammad Saeed Abaee、Zahra Vafajoo、Shokufe Ghahri Saremi、Mohammad Noroozi、Alireza Sedrpoushan、Meral Ataee
DOI:10.1080/17415993.2012.744410
日期:2013.8.1
thiols is accomplished by oxidation with trichloroisocyanuric acid (TCCA), tetra-butylammonium chloride (t-Bu4NCl), and water. The sulfonyl chlorides are then further allowed to react with phenol derivatives in the same reaction vessel. Also, a facile synthesis of N-substituted pyrroles by the reaction of hexane-2,5-dione with primary amines has been accomplished using TCCA as a catalyst under mild condition
描述了从硫醇和二硫化物方便地合成磺酸酯。从硫醇原位制备磺酰氯是通过用三氯异氰尿酸 (TCCA)、四丁基氯化铵 (t-Bu4NCl) 和水氧化来完成的。然后使磺酰氯在同一反应容器中进一步与苯酚衍生物反应。此外,使用 TCCA 作为催化剂,在温和的条件下,通过己烷-2,5-二酮与伯胺反应,以优异的产率轻松合成了 N-取代的吡咯。