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One-pot condensation of 2-aminothiophenol or 1,2-phenylenediamine with different aldehydes has been catalyzed by hexamethylenetetramine-bromine(HMTA-Bromine) as new,available and effective catalyst.2-Arylbenzo thiazoles and 2-aryl benzimidazoles have been achieved in excellent yield and good purity.
One-pot condensation of 2-aminothiophenol or 1,2-phenylenediamine with different aldehydes has been catalyzed by hexamethylenetetramine-bromine (HMTA-Bromine) as new, available and effective catalyst. 2-Arylbenzo thiazoles and 2-aryl benzimidazoles have been achieved in excellent yield and good purity.