Behavior of N, S-divinyl-2-mercaptobenzimidazole in the thiylation reaction

N. D. Abramova, G. G. Skvortsova, B. V. Trzhtsinskaya, M. V. Sigalov

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2 Scopus citations


N,S-Divinyl-2-mercaptobenzimidazole reacts with thiols under free-radical initiation conditions at both vinyl groups to give β-addition products, whereas it reacts with sulfur dioxide to give a stable complex. N-Vinylbenzimidazole-2-thione was obtained by heating the divinyl derivative of benzimidazole-2-thione in the presence of a mercaptan without a catalyst. The former on reaction with thiols under the influence of azobisisobutyronitrile readily forms N-(β-alkylthio)ethylbenzimidazole-2-thiones; in the presence of ionic catalysts, N-(α-alkylthio)ethylbenzimidazole-2-thiones are formed.

Original languageEnglish
Pages (from-to)1416-1419
Number of pages4
JournalChemistry of Heterocyclic Compounds
Issue number12
StatePublished - 1 Dec 1975
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry


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