Au-based bimetallic nanoparticles for the intramolecular aminoalkene hydroamination

Abstract

Bimetallic Au-based nanoparticles (Au–M where M = Pt, Pd, Cu, Ni), synthesized by simultaneous reduction of the Au salt with noble/non-noble metal salts, exhibit a high activity for the aminoalkene (2,2-diphenylpent-4-en-1-amine) hydroamination affording the 5-membered Markovnikov product. Even though the particle size and morphology of Au–M nanoparticles are comparable to the corresponding monometallic Au nanoparticles, Au–M nanoparticles display superior catalytic activity, where the selectivity for the formation of the hydroaminated product depends on the alloying metal component in the bimetallic Au nanoparticle catalyst.