Modification of conditions for the selective preparation of 2-amino-3-cyano-4-phenylpyridines
作者:Mónica Álvarez-Pérez、José Marco-Contelles
DOI:10.3998/ark.5550190.0012.223
日期:——
We herein describe the modification of the experimental conditions for the synthesis of certain 2amino-4-aryl-3-cyanopyridines from benzaldehyde, malononitrile, ammonium acetate and aminoketones. The outcome of the reaction proved to be highly dependent on the experimental procedure, occasionally giving rise to metaphthalodinitriles. Mechanistical proposals are also reported, in order to explain the