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.
A palladium-catalyzed oxidative C–H bond functionalization/ortho-acylation of acetanilides using easily accessible aldehyde as the acyl source is described. In the presence of a Pd(TFA)2 catalyst and tert-butylhydroperoxide at 90 °C in general, an array of ortho-acylacetanilides can be afforded in good yields.
Toluene derivatives as simple coupling precursors for cascade palladium-catalyzed oxidative C–H bond acylation of acetanilides
作者:Yinuo Wu、Pui Ying Choy、Fei Mao、Fuk Yee Kwong
DOI:10.1039/c2cc37352a
日期:——
A palladium-catalyzed cascade cross-coupling of acetanilide and toluene for the synthesis of ortho-acylacetanilide is described. Toluene derivatives can act as effective acyl precursors (upon sp(3)-C-H bond oxidation by a Pd/TBHP system) in the oxidative coupling between two C-H bonds. This dehydrogenative Pd-catalyzed ortho-acylation proceeds under mild reaction conditions.
Palladium-Catalyzed Direct <i>ortho</i>-Acylation through an Oxidative Coupling of Acetanilides with Toluene Derivatives
作者:Zhangwei Yin、Peipei Sun
DOI:10.1021/jo302125h
日期:2012.12.21
A facile ortho-acylation of acetanilides by a Pd-catalyzed oxidative C–H activation was developed in which low toxic, stable, and commercially available toluene derivatives were first used as acylation reagents by a tandem reaction to form o-acylacetanilides with moderate to good yields. Inexpensive, safe, and environmentally benign TBHP was proved to be an effective oxidant for these transformations
Merging Photoredox with Palladium Catalysis: Decarboxylative <i>ortho</i>-Acylation of Acetanilides with α-Oxocarboxylic Acids under Mild Reaction Conditions
作者:Chao Zhou、Pinhua Li、Xianjin Zhu、Lei Wang
DOI:10.1021/acs.orglett.5b03192
日期:2015.12.18
temperature decarboxylative ortho-acylation of acetanilides with α-oxocarboxylic acids has been developed via a novel Eosin Y with Pd dual catalytic system. This dual catalytic reaction shows a broad substrate scope and good functional group tolerance, and an array of ortho-acylacetanilides can be afforded in high yields under mild conditions.