The Use of Radioactive Element. II. Decomposition of 1, 4-Dibenzoyl-thiosemicarbazide and 1, 4-Dibenzoylsemicarbazide with Alkali.

Abstract

1, 4-Dibenzoylthiosemicarbazide (II) is converted by the action of alkali principally into 3-phenyl-5-mercapto-1, 2, 4-triazole (IV) and benzoic acid. The reaction route was studied by using ¹⁴C-tracer technique. It was thereby found that (II) affords 1-benzoyl-thiosemicarbazide (A) and benzoic acid in the first step and (A) further cyclizes to (IV), while a part of (A) decomposes into benzoic acid and ammonia. 1, 4-Dibenzoylsemicarbazide also behaves in analogous manner.