Facile and Convenient Syntheses of Fluorine-Containing Pyrido[2,3-h]-quinazolines and 1,7-Phenanthrolines by Condensation Reactions of 6,8-Bis(trifluoroacetyl)quinolin-5-amine with Carbonyl Compounds
作者:Etsuji Okada、Mamoru Hinoshita、Dai Shibata、Mizuki Hatakenaka
DOI:10.1055/s-0030-1260133
日期:2011.9
6,8-Bis(trifluoroacetyl)quinolin-5-amine reacted easily with various aldehydes in the presence of aqueous ammonia to afford trifluoromethylated pyrido[2,3-h]quinazoline derivatives and 1,7-phenanthroline derivatives in good to excellent yields. Under almost the same conditions, the use of ketones instead of aldehydes gave 1,7-phenanthroline derivatives selectively, except in the case of cyclohexanone.
6,8-双(三氟乙酰基)喹啉-5-胺在氨水存在下容易与各种醛反应,以良好至优异的产率得到三氟甲基化的吡啶并[2,3-h]喹唑啉衍生物和1,7-菲啰啉衍生物。在几乎相同的条件下,使用酮代替醛可以选择性地得到1,7-菲啰啉衍生物,除了环己酮的情况外。