Exclusive catalytic hydrogenation of nitrobenzene toward p-aminophenol over atomically precise Au₃₆(SR)₂₄ clusters.

ABSTRACT: Despite the advances in devising green methodologies for selective hydrogenation of nitrobenzene toward p-aminophenol, it is still difficult to realize p-aminophenol as the exclusive product in heterogeneous metal catalysis, as the excessive hydrogenation of nitrobenzene usually results in the aniline byproduct. Herein we report that a metal cluster containing 36 gold atoms capped by 24 thiolate ligands provides a unique pathway for nitrobenzene hydrogenation to achieve a p-aminophenol selectivity of ∼100%. The gold cluster can efficiently suppress the over-hydrogenation of amino groups via hydroxyl rearrangement with the aid of water and sequentially the proton transfer promoted by acid toward p-aminophenol. More notably, remarkable catalytic performance

SUBMITTER: Lu J 

PROVIDER: S-EPMC11388094 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature