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ON CYCLIZATION OF N-PHENYL-2-CHLOROPYRIDINIUM YLIDES BY THE ACTION OF ARYLDIAZONIUM SALTS

Максим А. Топчий, Евгений В. Бабаев
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Abstract


The reaction of 2-chloro-N-phenacylpyridinium salts with diazonium salts in the presence of bases was studied for the first time. It was demonstrated that this reaction leads to the formation of [1,2,4]triazolo[4,3-a]pyridinium salts. It was shown that substitution of the pyridine with a thiazole moiety leads to a similar cyclization.

Authors: Maxim A. Topchiy, Eugene V. Babaev*

 


Keywords


2-chloro-N-phenacylpyridinium salts; diazonium salts; thiazolo[2,3-c][1,2,4]triazol-4-ium salt; [1,2,4]triazolo[4,3-a]-pyridinium salts; cyclization

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