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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 523087Generated: October 30, 2026

Phthalic Anhydride → HCID 89995745, compound

https://huagongshe.com/reaction/523087

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
Reactant4-Amino-3-hydroxy-N,N-dimethylbenzenesulphonamideHCID 3016287—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
ProductHCID 89995745HCID 8999574574%

Reaction Conditions

Temperature120 °C

Reaction Steps

A suspension of 4-amino-3-hydroxy-N,N-dimethylbenzenesulfonamide (120 mg, 0.555 mmol) and phthalic anhydride (82 mg, 0.555 mmol) in AcOH (3 mL) was stirred at 120° C. under microwave irradiation for 60 minutes. The reaction was cooled and diluted with water to afford a suspension. The precipitate was filtered, washed with water and dried under high vacuum to afford the title compound as a pink solid (142 mg, 74%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09334286B2
Source datasetuspto-grants-2016_05
ORD IDord-48c2357f17f94e59b7d5b0fa0f9b30ae
Source noteuspto-grants-2016_05