Abstract: | Mercapto derivatives of benzimidazole and imidazole undergo condensation with 2,3-dichloro-1,4-naphthoquinone to give 1,4-naphthoquinonyl derivatives, which can be cyclized to cdioxo derivatives of condensed azole systems.See [2] for communication XXXIX.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 783–785, June, 1976. |