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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 425761Generated: October 23, 2026

4-Nitroisophthalic acid → 4-Aminobenzene-1,3-dioic acid

https://huagongshe.com/en/reaction/425761

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Nitroisophthalic acidHCID 3062438—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product4-Aminobenzene-1,3-dioic acidHCID 1135585287%

Reaction Steps

To a solution of 4-nitro isophthalic acid (98 g, 0.457 mol) in methanol (5 L) was added Pd/C (20%) and hydrogenated at RT for 4 h. The reaction mixture was filtered through celite and filtrate concentrated under vacuum to give 4-amino isophthalic acid (72 g, 87%) as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08106214B2
Source datasetuspto-grants-2012_01
ORD IDord-cfbdf63e2ce043f4bfa7dd3fb1708429
Source noteuspto-grants-2012_01