S. Ishiwata, Y. Shiokawa
Dec 25, 1969
Citations
0
Influential Citations
8
Citations
Journal
Chemical & Pharmaceutical Bulletin
Abstract
Reactions of 5-aminobenzimidazoles (I) with each crotonaldehyde and methyl propenyl ketonl selectively provided 3H-imidazo [4, 5-f] quinoline derivatives (type-A), whereas reaction of I with ethyl acetoacetate gave a mixture of 3H-imidazo [4, 5-f]-(type-A) and 1H-imidazo [5, 4-g] quinoline derivative (type-B). This result was explained by the stability of σ complex of intermediate.