PROCESS OF CATALYTIC LIQUID-PHASE HYDROGENATION OF 2',4',4-TRINITROBENZANILIDE IN ISOPROPYL ALCOHOL ON HIGH-POROUS PALLADIUM-CONTAINING CATALYST Russian patent published in 2007 - IPC C07C233/80 B01J23/44 B01J21/04 B01J27/53 

FIELD: industrial organic synthesis.

SUBSTANCE: title process resulting in production of aromatic polyamino compounds is carried out on heating in organic solvent (lower alcohols) medium in presence of supported palladium-containing catalyst, in particular, high-porosity (porosity 80-96%) cellular catalyst consisting of α-alumina-based support with active sulfated zirconium dioxide substrate and palladium as active component in amount 0.16-0.75 wt %.

EFFECT: simplified process, eliminated catalyst/hydrogenation catalysate separation stage, prevented destruction of catalyst, prolonged lifetime of catalyst, and increased purity of desired product.

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