Reactions of a series of 1-Aminobenzimidazoles and 1-Amino-3-methylbenzimidazolium chlorides with 2,4-pentanedione
作者:Toyo Kaiya、Shinsuke Aoyama、Kohfuku Kohda
DOI:10.1016/s0968-0896(99)00254-0
日期:2000.1
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