Highly active and selective catalysts of hydrogenation based on palladium bis-acetylacetonate and phenylphosphine

A new highly active catalyst for hydrogenation of unsaturated bonds, carbonyl and nitro groups based on Pd bis-acetylacetonate and phenylphosphine has been suggested. The conversion of Pd(acac)2 + nPH2Ph in hydrogen leads to the formation of nanoscale particles containing Pd(0), Pd phosphide and Pd phosphinidene complexes. The associates of Pd phosphinidene complexes and Pd phosphide act as the carrier for Pd cluster.