Syntheses and transformations of substituted benzazolyl‐ and tetrazolyl(benzotriazol‐1‐yl)methanes

Abstract

Abstract Condensation reactions of o ‐hydroxy‐ and o ‐mercaptoanilines, and o ‐phenylenediamine with (benzotriazol‐1‐yl)acetic acid result in (1,3‐benzazol‐2‐yl)(benzotriazol‐1‐yl)methanes. Cycloaddition of sodium azide to (benzotriazol‐1‐yl)acetonitrile leads to (1,2,3,4‐tetrazol‐5‐yl)(benzotriazol‐1‐yl)methane. The diazolo‐substituted benzotriazolylmethanes thus obtained were mono‐ and di‐alkylated at the methylene group and the displacement of the benzotriazole group by nucleophiles was investigated.