Cyclocondensation of n-(prop-2-yn-1-yl)-and n-(penta-2, 4-diyn-1-yl)-o-phenylenediamines with phenyl isothiocyanate and carbon disulfide

RV Novikov, NA Danilkina, IA Balova

Index: Novikov; Danilkina; Balova Chemistry of Heterocyclic Compounds, 2011 , vol. 47, # 6 p. 758 - 766

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Abstract

The cyclocondensation of N-(prop-2-yn-1-yl)-o-phenylenediamines with phenyl isothiocyanate leads to the formation of 1-(prop-2-yn-1-yl)-1, 3-dihydro-2H-benzimidazole-2- thiones irrespective of the substituent nature at the triple bond. Reactions of both mono-and