An expedient synthesis of indolo[1,2-a]quinolines via Mn(OAc)3-mediated oxidative free radical cyclization and NaI/O2-assisted dealkoxycarbonylation/aerobic oxidation cascade
作者:Hyun Seung Lee、Se Hee Kim、Yu Mi Kim、Jae Nyoung Kim
DOI:10.1016/j.tetlet.2010.07.092
日期:2010.9
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 oxidativefreeradicalcyclization, 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。