The influence of alumina phases on the performance of Pd/Al 2 O 3 catalyst in selective hydrogenation of benzonitrile to benzylamine

Controlled hydrogenation of a biomass-derived platform chemical formed by aldol-condensation of 5-hydroxymethyl furfural (HMF) and acetone over Ru, Pd, and Cu catalysts

“…We note that the optimized product selectivities represent the optimized values for the specific catalysts examined in this work, since factors such as metal dispersion and textural properties of the support are expected to play a role in the reaction kinetics, as evidenced by other hydrogenation studies with similar catalysts in the literature. [35][36][37] However, these properties are not expected to significantly affect the thermodynamics and overall mechanism of the hydrogenation. These factors are outside the scope of this work and are of interest for future work.…”

Nitrogen‐Doped Carbon‐Supported Nickel Nanoparticles: A Robust Catalyst to Bridge the Hydrogenation of Nitriles and the Reductive Amination of Carbonyl Compounds for the Synthesis of Primary Amines

“…Generally,m etallic nanoparticles have the ability to activate molecular hydrogen in chemical reduction reactions. [14][15][16][17][18]…”

“…However,t he hydrogenation of nitriles by homogeneous catalysts has distinct drawbacks in terms of the difficulty of recycling andr euse of the homogeneous catalysts as well as the contamination of the target products with trace amounts of metal from the homogeneous catalysts, which is detrimental to pharmaceuticals. To overcome the issues of homogeneous catalytic systems, ac onsiderable effort has been devoted to the design of new heterogeneous catalytic systems for the hydrogenation of nitriles, [14][15][16][17][18] which have been mainly based on preciousm etals.U ndoubtedly,t he use of expensive noblemetal catalysts would result in high production costs in practical applications. Therefore, the replacement of preciousm etals by inexpensive and less toxic non-noble metals has become one of the major goals in modernc hemistry.H owever, heterogeneous non-noble-metal catalysts have been rarely studied for the hydrogenation of nitriles into primary amines.…”

Selective Heterogeneous Catalytic Hydrogenation of Nitriles to Primary Amines

“…Among the precious metals, palladium is the most frequently used heterogeneous catalyst in the hydrogenation of nitriles, exclusively in supported form: on activated carbon [46][47][48][49][50][51][52][53], on alumina [51,52,[54][55][56][57][58][59][60][61][62], on MCM-41 [63] or on silica [64].…”