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US 11,712,680 B2Granted
Process for reducing aromatic nitro compounds with supported catalyst
AssigneeKing Fahd University of Petroleum and Minerals
InventorsM. Nasiruzzaman Shaikh, Md. Abdul Aziz
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Abstract
A supported catalyst having rhodium particles with an average diameter of less than 1 nm disposed on a support material containing magnetic iron oxide (e.g. Fe3O4). A method of producing the supported catalyst and a process of reducing nitroarenes to corresponding aromatic amines employing the supported catalyst with a high product yield are also described. The supported catalyst may be recovered with ease using an external magnet and reused.
Claims15
A process of reducing an aromatic nitro compound to an aromatic amine compound, the method comprising:
- mixing the aromatic nitro compound with a hydrogen transfer reagent in the presence of a supported catalyst and a solvent to form a reaction mixture;
- and
- heating the reaction mixture thereby forming the aromatic amine compound;
- wherein the supported catalyst comprises:
- a support material comprising Fe3O4;
- and
- a catalytic material comprising rhodium disposed on the support material;
- wherein the catalytic material is in the form of subnanoparticles having an average particle size of 0.2-0.99 nm;
- the rhodium is present in an amount of 1-20 wt % relative to a total weight of the supported catalyst;
- and
- the support material is devoid of Al2O3.
8 more elements
Dependencies are inferred from the claim text.