120625-26-5Relevant articles and documents
SYNTHESIS OF 2-ARYL-1H-s-TRIAZOLOBENZIMIDAZOLES
Rao, P. Jayaprasad,Reddy, K. Kondal
, p. 1995 - 2002 (2007/10/02)
2-Aroylaminobenzimidazoles (2) have been converted into 1(2-benzimidazolyl)-5-aryl-1H-tetrazoles (4) by treatment with PCl5 followed by azidation with NaN3 in aqueous acetone solution.Pyrolysis of 4 in diphenylether yielded 2-aryl-1H-s-triazolobenzimidazoles (6).The product of benzylation of 6a has been characterised.A reasonable pathway for the formation of 6 from 4 has been suggested.