Synthesis of 1-azabenzo[a]phenoxazin-5-one and 11-amino-1,8,10-triazabenzo[a]phenoxazin-5-one and their functionalized aryl derivatives via Mizoroki-Heck arylation methodology
作者:Oni Toba、Okoro Chris、Ugwu Izuchukwu
DOI:10.13005/ojc/310144
日期:2015.3.28
The synthesis of angular 1-azabenzo(a)phenoxazin-5-one and 11-amino-1,8,10- triazabenzo(a) phenoxazin-5-one and their functionalized aryl derivatives via Mizoroki-Heck arylation methodology is reported. 11-Amino-1,8,10-triazabenzo(a)phenoxazin-5-one (16) and 1- azabenzo(a)phenoxazin-5-one (18) were synthesized by the reaction of 7-chloro-5,8- quinolinequinone (obtained by a multistage conversion of
据报道,通过Mizoroki-Heck芳基化方法合成了角1-氮杂苯并(a)苯恶嗪-5-酮和11-氨基-1,8,10-三氮杂苯并(a)苯恶嗪-5-酮及其官能化的芳基衍生物。通过7-氯-5,8的反应合成了11-氨基-1,8,10-三氮杂苯并(a)苯恶嗪-5-酮(16)和1-氮杂苯并(a)苯恶嗪-5-酮(18)。 -在无水乙酸钠存在下分别用4,5-二氨基-6-羟基嘧啶和2-氨基苯酚的喹啉醌(通过8-羟基喹啉的多级转化获得)。通过与碘苯衍生物回流,使用1,4-将11-氨基-1,8,10-三氮杂苯并(a)苯恶嗪-5-酮和1-氮杂苯并(a)苯恶嗪-5-酮进行Mizoroki-Heck偶联反应。双(二苯基膦基)丁烷-氯化钯(11),1,4-双-(2-羟基-3,以5-二叔丁基苄基)哌嗪为配体,以甲醇为溶剂在60-650°C下反应4小时,以极佳的收率得到角11-氨基-1,8,10-三氮杂苯并(a)苯恶嗪-5-酮(19a)的芳基衍生物-c)和1-