The carbomethylation of arylacrylamides leading to 3-ethyl-3-substituted indolin-2-one by cascade radical addition/cyclization
作者:Qiang Dai、Jintao Yu、Yan Jiang、Songjin Guo、Haitao Yang、Jiang Cheng
DOI:10.1039/c4cc01053a
日期:——
An FeCl2-promoted carbomethylation of arylacrylamides by di-tert-butyl peroxide (DTBP) is achieved, leading to 3-ethyl-3-substituted indolin-2-one in high yield. The reaction tolerates a series of functional groups, such as cyano, nitro, ethyloxy carbonyl, bromo, chloro, and trifluoromethyl groups. The radical methylation and arylation of the alkenyl group are involved in this reaction.
利用
二叔丁基过氧化物(
DTBP)实现的FeCl2促进的芳基
丙烯酰胺的
甲酸甲酯化反应,以高产率得到3-乙基-3-取代的
吲哚啉-2-酮。该反应容忍一系列官能团,如
氰基、硝基、乙氧羰基、
溴、
氯和三
氟甲基等。反应涉及烯丙基的自由基甲基化和芳基化。