Benzotriazol-1-yl-Acetone as a Building Block in Heterocyclic Chemistry: A Route to Benzotriazolylpyridazines,Benzotriazolylphthalazines and Benzotriazolylpyrazolo[5,1- c ]-1,2,4-triazines

Abstract

Benzotriazolylacetone is coupled with aromatic diazonium salts to yield arylhydrazones, which can be condensed with ethyl cyanoacetate yielding pyridazinones whose reactivity towards activated double bond systems is investigated.