Direct access to thieno[3,4-b]thiophenes via elemental sulfur-promoted sulfurative tetramerization of acetophenones.
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DOI: 10.1039/d2cc05539b
Abstract: Thieno[3,4-b]thiophene cores could be conveniently obtained via one-pot sulfurative tetramerization of acetophenones using a ternary system comprised of elemental sulfur, a base and DMSO under simple heating conditions. The structure of the products was verified… read more here.
Keywords: sulfurative tetramerization; direct access; tetramerization acetophenones; elemental sulfur ... See more keywords