Amid(e) them all: Primarycarboxamides and ureas react with aromatic and aliphatic amines in the presence of a copper catalyst to give a wide range of functionalized amides (see scheme).
Pd(ii)-catalyzed decarboxylative cross-coupling of oxamic acids with potassium phenyltrifluoroborates under mild conditions
作者:Mingzong Li、Cong Wang、Ping Fang、Haibo Ge
DOI:10.1039/c1cc11635e
日期:——
A novel Pd-catalyzed decarboxylative cross-coupling of oxamic acids with potassium phenyltrifluoroborates has been realized under mild reaction conditions. This method provides an efficient access to N-mono- or N,N-disubstituted benzamides and benzoates.
Nickel-catalyzed reductive amidation of aryl-triazine ethers
作者:Majid M. Heravi、Farhad Panahi、Nasser Iranpoor
DOI:10.1039/c9cc08727c
日期:——
The reaction of activated phenoliccompounds, 2,4,6-triaryloxy-1,3,5-triazine (aryl-triazine ethers), with various isocyanates or carbodiimides in the presence of a nickel pre-catalyst resulted in the synthesis of aryl amides in good to excellent yields.
A General Continuous Flow Method for Palladium Catalysed Carbonylation Reactions Using Single and Multiple Tube-in-Tube Gas-Liquid Microreactors
作者:Ulrike Gross、Peter Koos、Matthew O'Brien、Anastasios Polyzos、Steven V. Ley
DOI:10.1002/ejoc.201402804
日期:2014.10
with segmentedflowgas-liquid reactors. As the volume of pressurised gas contained within the device is low, the hazards associated with this are potentially mitigated relative to comparable batch processes. We also show how the incorporation of a second in-line gas-flow reactor allows for the sequential introduction of two gases (carbon monoxide and a gaseous nucleophile) into the reaction stream
Metal‐free Photocatalytic Intermolecular anti‐Markovnikov Hydroamination of Unactivated Alkenes
作者:Gaoyuan Zhao、Juncheng Li、Ting Wang
DOI:10.1002/ejoc.202100049
日期:2021.5.14
A metal‐free intermolecularhydroamination reaction induced by visible light was developed. These reactions show great generality of a variety of N‐radicals and alkenes, providing direct access to various masked amines. The radical strategy provides excellent anti‐Markovnikov selectivity and regioselectivity in diene substrates.