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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1930987Generated: October 31, 2026

Methanol → 2-Hydroxy-5-methylsulfamoyl-benzoic acid methyl ester

https://huagongshe.com/reaction/1930987

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant2-Hydroxy-5-methylsulfamoyl-benzoic acidHCID 14490061—
SolventTetrahydrofuranHCID 8028—
Product2-Hydroxy-5-methylsulfamoyl-benzoic acid methyl esterHCID 23046763—

Reaction Conditions

Temperature70 °C

Reaction Steps

To 77 mmol 2-hydroxy-5-methylsulfamoyl-benzoic acid in 300 ml THF was added 85 mmol CDI and the mixture heated at 70° C. for 1 h. 770 mmol methanol was then added and the mixture was heated at 70° C. for 16 h. The mixture was then cooled to room temperature and concentrated in vacuo. The residue was chromatographed on silica gel (eluant: ethyl acetate/heptane/dichloromethane 45:45:10) to afford the title compound. MS (m/e): 244.1 ([M−H]−, 100%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188139B2
Source datasetuspto-grants-2012_05
ORD IDord-d37d3349d92a4cad806a144980cff62a
Source noteuspto-grants-2012_05