39860-02-1Relevant academic research and scientific papers
SYNTHESIS OF 2-ARYLAZOBENZIMIDAZOLES ON THE BASIS OF AROMATIC HYDROCARBONS
Kolodyazhnaya, S. N.,Divaeva, L. N.,Simonov, A. M.,Sogomonova, R. A.
, p. 534 - 540 (2007/10/02)
Conditions that exclude "self-coupling" in the reaction of benzimidazole-2-diazonium salts with the simplest aromatic hydrocarbons were selected.The synthesis of 3'-tolyl- and 2'-6'-xylylazobenzimidazoles, which are isolated along with the expected isomers in diazo coupling with toluene and m-xylene, was also realized by an alternative pathway from the corresponding p-aminophenylazobenzimidazoles.The reaction of benzimidazole-2-diazonium salts with primary aromatic amines, which is complicated in the benzimidazole series by side reactions, was studied.The structures of the newly synthesized compounds were confirmed by spectral methods.
