Pf. Xu et al., SYNTHESIS OF 1,2,4-TRIAZOLE, 1,3,4-THIADIAZOLE AND 1,3,4-OXADIAZOLE DERIVATIVES OF 6-NITROBENZIMIDAZOLE, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 37(2), 1998, pp. 127-131
A series of new -(6'-nitrobenzimidazole-1-ylmethyl-1,2,4-triazoles 5,
8, 1,3,4-thiadiazole 9, and 1, 3, 4-oxadiazole 10 has been synthesized
from 6-nitrobenzimidazole I via ole-1-carbonylmethyl)-4-phenyl-3-thio
semicarbazide 6. The thiosemicarbazides have been readily obtained fro
m 6-nitrobenzimidazole-1-acetic acid hydrazide 3 in good yield. These
compounds have been characterized on the basis of elemental analyses,
IR, NMR and MS.