81889-93-2Relevant academic research and scientific papers
Reactions of a series of 1-aminobenzimidazoles and 1-amino-3- methylbenzimidazolium chlorides with 2,4-pentanedione
Kaiya, Toyo,Aoyama, Shinsuke,Kohda, Kohfuku
, p. 37 - 42 (2007/10/03)
Reactions of a series of 1-aminobenzimidazoles and 1-amino-3- methylbenzimidazolium chlorides with 2,4-pentanedione were carried out and pyridazino[1,6-a]benzimidazoles and 2-pyrazolylanilines were generated. The product ratios of these compounds remarkably depended on the reaction conditions and on the electronic character of the substituent at the benzene moiety. The possible mechanisms involved in these reactions are discussed. (C) 2000 Elsevier Science Ltd.
REACTION OF 1-AMINOBENZIMIDAZOLES WITH β-DIKETONES. SYNTHESIS OF PYRIDAZINOBENZIMIDAZOLES
Kuz'menko, V. V.,Komissarov, V. N.,Simonov, A. M.
, p. 314 - 318 (2007/10/02)
The action of acetyl- and benzoylacetone on 1-aminobenzimidazoles in the presence of catalytic amounts of zinc chloride was used to synthesize 1-ylidene derivatives, which at higher temperatures undergo thermal cyclization to 2,4-disubstituted pyridazinobenzimidazoles.
