Iodine-mediated one-pot synthesis of C-3 acylated indolizines from pyridines, aryl methyl ketones and acrylate derivatives
作者:Youlai Fang、Lisheng He、Weidong Pan、Yuzhu Yang
DOI:10.1016/j.tet.2019.05.058
日期:2019.7
reaction from pyridines, aryl methyl ketones and electron deficient acrylates has been accomplished in a “one-pot” manner, which provides a straightforward and efficient access to C-3 acylated indolizines. The key intermediate of N-ylides is hypothesized to be generated in situ from pyridines and (hetero)aryl methyl ketones in the presence of iodine. This method has been applied in the synthesis of two
Palladium-Catalyzed Oxidative C−H Bond and C═C Double Bond Cleavage: C-3 Acylation of Indolizines with α,β-Unsaturated Carboxylic Acids
作者:Yuzhu Yang、Li Chen、Zhaoguo Zhang、Yuhong Zhang
DOI:10.1021/ol200025k
日期:2011.3.18
A novel palladium-catalyzed C-3 acylation of indolizines with α,β-unsaturated carboxylic acids via C−H bond and C═C double bond cleavage under oxidative conditions is described. The regioselectivity is assisted by the carboxylic group, and the selection of the oxidant is crucial to the reaction.