作者:Haruyo Sato、Shinzo Imamura、Yukishige Kitano
DOI:10.1246/bcsj.57.895
日期:1984.3
with ethyl acetimidate hydrochloride in acetic acid at below 50 °C, though only 2-methyl-4,5,6,7-tetrahydrobenzimidazole was produced by the reaction of 2-aminocyclohexanone oxime and free ethyl acetimidate in neutral solvents. A novel Beckmann fission reaction of dimeric 2-aminocyclohexanone oxime is presumed to participate in the formation of 2-(4-cyanobutyl)-4,5,6,7-tetrahydrobenzimidazole.
2-(4-氰基丁基)-4,5,6,7-四氢苯并咪唑是通过在低于 50°C 的乙酸中用乙亚胺酸乙酯盐酸盐处理 2-氨基环己酮肟获得的,尽管只有 2-甲基-4,5,6, 7-四氢苯并咪唑由2-氨基环己酮肟与游离的乙亚胺酸乙酯在中性溶剂中反应制得。据推测,二聚体 2-氨基环己酮肟的新型贝克曼裂变反应参与了 2-(4-氰基丁基)-4,5,6,7-四氢苯并咪唑的形成。