An expedient synthetic procedure of indolo[1,2-a]quinolines was developed using a sequential Cu-mediated N-arylation of indole, Mn(OAc)3-mediated oxidative free radical cyclization, and NaI/O2-assisted concomitant dealkoxycarbonylation/aerobic oxidation. The last step was replaced by a palladium-catalyzed decarboxylation/elimination protocol for the allyl ester derivatives.
的有利的合成方法
吲哚并[1,2一]
喹啉使用
吲哚,
锰(OAC)顺序的Cu介导的N-芳基化的开发3 -介导的氧化性自由基环化,和NaI / O 2 -assisted伴随dealkoxycarbonylation /有氧氧化。最后一步被烯丙基酯衍
生物的
钯催化脱羧/消除方案所取代。