A process for the manufacture of aromatic nitriles by reacting an aromatic halogen compound with formamide and the anhydride of a monocarboxylic acid in the presence of a copper catalyst and an acid-binding agent. Particularly applicable to replacement of halogen ortho to the azo linkage of an azo dyestuff by cyano.
Copper(II) ethanoate-assisted phosphonation of aryl halides
作者:Joseph A. Connor、Anthony C. Jones、Raymond Price
DOI:10.1039/c39800000137
日期:——
A mixed valence trinuclear copper complex [Cu3(OAc)5P(OR)3}2] is formed in the reaction between a 2-halogenoaryl azo compound and a trialkyl phosphite in the presence of copper(II) ethanoate which gives the corresponding 2-(dialkylphosphonato)aryl azo compound.