Catalytic transfer hydrogenation over bimetallic lanthanide (Eu or Yb)-containing catalysts using NH3 as a hydrogen donor

Abstract

Catalytic transfer hydrogenation of ethene and buta-1,3-diene with the aid of ammonia as a hydrogen donor is greatly enhanced by lanthanide (Ln)-promoted catalysts (Ln-Ni/Si02, Ln-RdC, Ln-CdSiO, and Ln-AglZrOz), prepared by the reaction with Eu or Yb metal dissolved in liquid ammonia.Catalytic transfer hydrogenation using hydrogen donors shows some interesting features which are of potential synthetic importance and use.1-4 We now report that lanthanide (Ln)promoted catalysts obtained by the reaction of Ni/Si02, Ru/C,