Synthesis of (Z)-3-aryloxy-acrylonitriles, (E)-3-aryloxy-acrylonitriles and 3-cyanobenzofurans through the sequential reactions of phenols with propiolonitriles
Palladium-Catalyzed Carbonylative α-Arylation of <i>tert</i>-Butyl Cyanoacetate with (Hetero)aryl Bromides
作者:Mikkel T. Jensen、Martin Juhl、Dennis U. Nielsen、Mikkel F. Jacobsen、Anders T. Lindhardt、Troels Skrydstrup
DOI:10.1021/acs.joc.5b02897
日期:2016.2.19
A three-component coupling protocol has been developed for the generation of 3-oxo-3-(hetero)arylpropanenitriles via a carbonylativepalladium-catalyzedα-arylation of tert-butyl 2-cyanoacetates with (hetero)aryl bromides followed by an acid-mediated decarboxylation step. Through the combination of only a stoichiometric loading of carbon monoxide and mild basic reaction conditions such as MgCl2 and