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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1777047Generated: November 2, 2026

Methanol → HCID 1216839, compound

https://huagongshe.com/reaction/1777047

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSulfuric AcidHCID 1118—
Reactant3-(Pyrrolidine-1-sulfonyl)benzoic acidHCID 767690—
ProductHCID 1216839HCID 121683968.3%

Reaction Steps

3-(pyrrolidin-1-ylsulfonyl)benzoic acid (200 mg, 0.783 mmol) was refluxed in the presence of con. Sulfuric acid (5.06 mg, 0.039 mmol) in methanol at 70° C. for overnight. Reaction was monitored by TLC. After completion of the reaction, solvent was removed by vacuum and then compound was purified by flash chromatography afforded the methyl 3-(pyrrolidin-1-ylsulfonyl)benzoate (150 mg, 0.535 mmol, 68.3% yield). 1H NMR (CDCl3, 400 MHz): δ 8.47 (m, 1H), 8.25 (d, 1H, J=7.6 Hz), 8.02 (dt, 1H, J=1.2 & 8.0 Hz), 7.63 (t, 1H, J=7.6 Hz), 3.96 (s, 3H), 3.27 (m, 4H), 1.77 (m, 4H). Mass [M+H]+: 270.1

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09266838B2
Source datasetuspto-grants-2016_02
ORD IDord-c1afae653f8d45adb610cb95524b55da
Source noteuspto-grants-2016_02