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.
Palladium-Catalyzed Hydrocarbonylative C–N Coupling of Alkenes with Amides
作者:Xibing Zhou、Guoying Zhang、Bao Gao、Hanmin Huang
DOI:10.1021/acs.orglett.8b00538
日期:2018.4.20
An efficient palladium-catalyzed hydrocarbonylative C–N coupling of alkenes with amides has been developed. The reaction was performed via hydrocarbonylation of alkenes, followed by acyl metathesis with amides. Both intermolecular and intramolecular reactions proceed smoothly to give either branched or linear amides in high turnover number (3500) with NH4Cl or NMP·HCl as a proton source under the palladium
Clean, reusable and low cost heterogeneous catalyst for amide synthesis
作者:James W. Comerford、James H. Clark、Duncan J. Macquarrie、Simon W. Breeden
DOI:10.1039/b901581g
日期:——
We have developed a heterogeneous silica catalyst that can effectively catalyse amide synthesis from acid and amine, without production of toxic by-products and with the advantage of being readily available, low cost, environmentally benign and reusable.
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