Synthesis of 5<i>H</i>-pyrido[2,3-<i>a</i>]phenoxazin-5-one and 5<i>H</i>-pyrido[3,2-<i>a</i>]phenoxazin-5-one derivatives
作者:Seiko Nan'ya、Eturô Maekawa、Hitoshi Hayakawa、Yukio Kitaguchi、Yoshio Ueno
DOI:10.1002/jhet.5570220604
日期:1985.11
The 5H-pyrido[2,3-a]phenoxazin-5-one derivatives and 5H-pyrido[3,2-a]phenoxazin-5-one derivatives were prepared by the condensation of substituted 2-aminophenols with 6,7-dibromo-5,8-quinolinequinone followed by dehalogenation in the presence of sodium hydrosulfite dissolved in aqueous pyridine under a nitrogen atmosphere.
通过将取代的2-氨基酚与6,7缩合制备5 H-吡啶并[2,3- a ]吩恶嗪-5-one衍生物和5 H-吡啶并[3,2- a ]吩恶嗪-5-one衍生物。 -dibromo-5,8-quinolinequinone,然后在氮气氛下在溶解于吡啶水溶液中的亚硫酸氢钠存在下脱卤。