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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 429528Generated: October 26, 2026

1,2-Benzenedicarboxylic acid, 4-nitro- → N-Hydroxy-4-nitrophthalimide

https://huagongshe.com/reaction/429528

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-Benzenedicarboxylic acid, 4-nitro-HCID 69121—
ReactantHydroxylammonium phosphate (3:1)HCID 10176537—
ProductN-Hydroxy-4-nitrophthalimideHCID 11458432—

Reaction Steps

Analogous to Example 4, but from 500 mg (2.37 mmol) of 4-nitrophthalic acid (tech., contaminated with approximately 10% of 3-nitrophthalic acid) and 187 mg (0.974 mmol) of hydroxylammonium phosphate at a bath temperature of 130° C. The yield was 332 mg (67%, approximately 5% contaminated).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06316639B1
Source datasetuspto-grants-2001_11
ORD IDord-5f980e1714e949f3a1ec2a42ce0bead9
Source noteuspto-grants-2001_11