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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 734730Generated: October 30, 2026

Methanol → HCID 13318612, compound

https://huagongshe.com/reaction/734730

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant4-Chloro-2-fluoro-5-sulfamoylbenzoic acidHCID 12462572—
CatalystSulfuric AcidHCID 1118—
SolventEthyl AcetateHCID 8857—
ProductHCID 13318612HCID 1331861295%

Reaction Steps

5-(Aminosulfonyl)-4-chloro-2-fluorobenzoic acid (507 mg, 2.0 mmol) in CH3OH (3 mL) with 3 drops of concentrated sulfuric acid was heated at 80° C. for 60 hours. The reaction mixture was diluted with EtOAc (20 mL), washed with water, brine, and dried (Na2SO4). The solvent was evaporated to afford the product (508 mg, 95%) as a white solid. MS (ES+) m/z 268 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07592357B2
Source datasetuspto-grants-2009_09
ORD IDord-6b6ebbc1a3f14e38b56bd92dc5659ec0
Source noteuspto-grants-2009_09