n of alkenes with anilines has been developed for the atom-economical synthesis of 2-substituted propanamides bearing an α-stereocenter. A novel phosphoramidite ligand L16 was discovered which exhibited very high reactivity and selectivity in the reaction. This asymmetric Markovnikov hydroaminocarbonylation employs readily available starting materials and tolerates a wide range of functional groups
This work reports a simple and efficient method for the copper-catalyzed redox-neutral transformation of alkyl nitriles using eco-friendly diaryliodonium salts and leading to N-arylacetamides. The method features high efficiency, broad substrate scope and good functional group tolerance.
Catalytic α-Hydroarylation of Acrylates and Acrylamides via an Interrupted Hydrodehalogenation Reaction
作者:Alena M. Vasquez、John A. Gurak、Candice L. Joe、Emily C. Cherney、Keary M. Engle
DOI:10.1021/jacs.0c03040
日期:2020.6.10
The palladium-catalyzed, α-selective hydroarylation of acrylates and acrylamides is reported. Under optimized conditions, this method is highly tolerant of a wide range of substrates including those with base sensitive functional groups and/or multiple enolizable carbonyl groups. A detailed mechanistic study was undertaken, and the high selectivity of this transformation was shown to be enabled by
Organic ligand-free carbonylation reactions with unsupported bulk Pd as catalyst
作者:Shujuan Liu、Hongli Wang、Xingchao Dai、Feng Shi
DOI:10.1039/c8gc00740c
日期:——
ligand-free conditions, namely, hydroaminocarbonylation of olefins, aminocarbonylation of aryliodides and oxidative carbonylation of amines, which almost cover all the known mechanisms in carbonylation reactions. Notably, the bulk Pdcatalyst system exhibited better catalytic activity than the classical homogeneous PdCl2/(2-OMePh)3P catalyst system. This study will create a momentous and new field of green
Palladium-catalyzed amidation–hydrolysis reaction of gem-dihaloolefins: efficient synthesis of homologated carboxamides from ketones
作者:Wenchao Ye、Jun Mo、Tiankun Zhao、Bin Xu
DOI:10.1039/b904991f
日期:——
A simple and efficient palladium-catalyzed amidationâhydrolysis reaction has been developed to afford N-aryl monosubstituted carboxamides in good to excellent yields from easily accessible ketone-derived gem-dihaloolefins and aryl amines.