One-pot tandem reactions for direct conversion of thiols and disulfides to sulfonic esters, and Paal–Knorr synthesis of pyrrole derivatives catalyzed by TCCA
…, SG Saremi, M Noroozi, A Sedrpoushan…
Index: Hemmati, Saba; Mojtahedi, Mohammad Majid; Abaee, Mohammad Saeed; Vafajoo, Zahra; Saremi, Shokufe Ghahri; Noroozi, Mohammad; Sedrpoushan, Alireza; Ataee, Meral Journal of Sulfur Chemistry, 2013 , vol. 34, # 4 p. 347 - 357
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Abstract
A convenient synthesis of sulfonic esters from thiols and disulfides is described. In situ preparation of sulfonyl chlorides from 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 ...
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