作者:Nathalie Dubois、Daniel Glynn、Thomas McInally、Barrie Rhodes、Simon Woodward、Derek J. Irvine、Chris Dodds
DOI:10.1016/j.tet.2013.08.062
日期:2013.11
acids with primary and secondary amines under a variety of conditions (reflux, sealed tube, microwave) has been compared for a significant range of coupling partners of relevance to the preparation of amides of interest in pharmaceutical chemistry. Commercial microwave reactors promote the fastest couplings and allow the use of significantly sterically hinderedamines (primary and secondary) and carboxylic
Visible-Light-Mediated Catalytic Hydroacylation of Dialkyl Azodicarboxylates by Graphite Flakes
作者:Giorgos S. Koutoulogenis、Maroula G. Kokotou、Errika Voutyritsa、Dimitris Limnios、Christoforos G. Kokotos
DOI:10.1021/acs.orglett.7b00519
日期:2017.4.7
A nova and efficient Metal-free catalyted hydroacylation of dialkyl azodicarboxylates is reported. Graphite flakes were found to be the most efficient catalyst among other carbon-based materials to prothote this reaction. This unprecedented catalytic activity can be expanded into a wide substrate scope of aliphatic aldehydes bearing various functional groups, leading to the corresponding products in good to excellent yields.
Catalytic Acylation of Amines with Aldehydes or Aldoximes
作者:C. Liana Allen、Simge Davulcu、Jonathan M. J. Williams
DOI:10.1021/ol101978h
日期:2010.11.19
The simple nickel salt NiCl2 center dot 6H(2)O catalyzes the coupling of aldoximes with amines to give secondary or tertiary amide products. The aldoxime can be prepared in situ from the corresponding aldehyde. The use of O-18-labeled oximes has allowed insight into the mechanism of this reaction.