Zirconium catalysed intermolecular hydroamination reactions of secondary amines with alkynes†
Abstract
An in situ generated cationic zirconium complex stabilized by an n-butylamine-bridged bis(phenolato) ligand has been developed to catalyse hydroamination reactions of secondary amines, which is the first example of group 4 metal based catalysts capable of mediating intermolecular hydroamination reactions of N-aryl/alkyl amines.