抄録
Benzaldehyde phenylhydrazone and acetaldehyde phenylhydrazone reacted with formamide when they were heated to form chiefly 1-phenyl-1, 2, 4-triazole and the corresponding N-alkylformamide The reaction of benzaldehyde azine and formamide afforded 1, 2, 4-triazole and N-benzylformamide. In these reactions, it appears that an intermediate of hydrazine or formylhydrazine is formed during the course of triazole formation and cleavage reaction occurs at the =C=N- bond with reductive condensation.