Studies on gold-nitrone systems

Abstract

Novel Au(I)​-​nitrone complexes with specific catalytic properties were prepd. Also, Au(I)​- and Au(III)​-​oxadiazole complexes were formed by a novel Au-​generated nitrile-​nitrone [3 + 2] cycloaddn., and the crystal structures of Au(I)​-​nitrones as well as the Au(I)​- and Au(III)​-​oxadiazole complexes were studied (x-​ray)​. A useful 1-​pot Au(III)​-​mediated cycloaddn. method was developed for the formation of a no. of dihydro-​1,​2,​4-​oxadiazoles, involving in situ formation of Au(III)​-​oxadiazole complexes. The obsd. Au(I) and Au(III) dual selective reactivity gives new understanding about the Au(I)​- and Au(III)​-​nitrone chemistry