Copper(II) complexes with carboxylic- or sulfonic-functionalized arylhydrazones of acetoacetanilide and their application in cyanosilylation of aldehydes

Mononuclear copper(II) complexes bearing carboxylic- or sulfonic-functionalized arylhydrazones of acetoacetanilide ligands act as homogeneous catalysts for the cyanosilylation of aldehydes with trimethylsilyl cyanide leading to cyanohydrin trimethylsilyl ethers.211