Room Temperature Palladium-Catalyzed Decarboxylative Acyl/Aroylation using [Fe(III)(EDTA)(η<sup>2</sup>-O<sub>2</sub>)]<sup>3−</sup>as Oxidant at Biological pH
作者:Sugandha Sharma、Imran A. Khan、Anil K. Saxena
DOI:10.1002/adsc.201201085
日期:2013.3.11
The purple‐coloured iron peroxo complex [Fe(III)EDTA(η2‐O2)]3− as a novel reagent system for Pd‐catalyzed decarboxylative ortho‐acylation of acetanilides with α‐oxocarboxylic acids at roomtemperature in aqueous media has been realized. This reaction provides an effective access to ortho‐acylacetanilides under mild conditions.
Direct arylation of cyclic enamides via Pd(ii)-catalyzed C–H activation
作者:Hai Zhou、Wan-Jun Chung、Yun-He Xu、Teck-Peng Loh
DOI:10.1039/b903151k
日期:——
A new direct coupling of cyclic enamides with aryl boronic acids viaPd(II)-catalyzed CâH functionalization has been achieved with good yields (up to 90%).
Decarboxylative Acylation of Cyclic Enamides with α-Oxocarboxylic Acids by Palladium-Catalyzed C–H Activation at Room Temperature
作者:Hua Wang、Li-Na Guo、Xin-Hua Duan
DOI:10.1021/ol301801r
日期:2012.9.7
efficient catalytic decarboxylative acylation of unactivated sp2 (alkenyl) C–H bonds has been developed. Various substituted α-oxocarboxylic acids with different electronic properties react under mild conditions to afford a diverse range of β-acyl enamide products in good yields. The reaction is proposed to proceed via a cyclic vinylpalladium intermediate, facilitating the decarboxylative dehydrogenative
Palladium-Catalyzed Direct Arylation of Cyclic Enamides with Aryl Silanes by sp2 CH Activation
作者:Hai Zhou、Yun-He Xu、Wan-Jun Chung、Teck-Peng Loh
DOI:10.1002/anie.200901884
日期:——
It does get in! A fluoride‐assisted direct cross‐coupling of cyclic enamides with trialkoxy aryl silanes by a palladium‐catalyzed CH activation leads to a wide range of enamides in yields of up to 95 %.