A trisulfur radical anion (S3˙-) involved sulfur insertion reaction of 1,3-enynes: sulfide sources control chemoselective synthesis of 2,3,5-trisubstituted thiophenes and 3-thienyl disulfides.
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DOI: 10.1039/c9cc03604k
Abstract: Cascade cyclization reactions of S3˙- in situ generated from S2- with 1,3-enynes for the chemoselective synthesis of 2,3,5-trisubstituted thiophenes and 3-thienyl disulfides controlled by sulfide salts are developed. These two protocols provide new, environment-friendly and… read more here.
Keywords: thiophenes thienyl; thienyl disulfides; synthesis trisubstituted; trisubstituted thiophenes ... See more keywords