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
进行一系列的1-氨基苯并咪唑和1-氨基-3-甲基苯并咪唑氯化物与2,4-戊二酮的反应,并生成哒嗪并[1,6-a]苯并咪唑和2-吡唑基苯胺。这些化合物的产物比例明显取决于反应条件和苯部分上取代基的电子特性。讨论了这些反应中可能的机制。