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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2121446Generated: November 2, 2026

Water → HCID 10180362, compound

https://huagongshe.com/reaction/2121446

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactantp-Anisoyl chlorideHCID 7477—
ReactantTriethylamineHCID 8471—
Reactant3-AminopyrrolidineHCID 164401—
ReactantBenzoic acid, 2-(chlorosulfonyl)-, ethyl ester (9CI)HCID 3763467—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventAcetonitrileHCID 6342—
ProductHCID 10180362HCID 10180362—

Reaction Conditions

Temperature0 °C

Reaction Steps

Part A: 3-aminopyrrolidine (636 mg, 4 mmol), triethylamine (2.7 mL, 20 mmol), and 4-(dimethylamino)pyridine (75 mg) were suspended in acetonitrile. After 10 min, the reaction was chilled to 0° C. 4-methoxybenzoyl chloride (0.54 mL, 4 mmol) was added drop-wise. After 30 min, 2-carboethoxybenzenesulfonyl chloride (0.996 g, 4.0 mmol) was introduced drop-wise by syringe. The mixture was stirred at 0° C. for 1 hr, and then at ambient temperature for 2 hr. Water was added (50 mL). The mixture was extracted using ethyl acetate (2×50 mL). The organic layer was dried over MgSO4, filtered through silica, and concentrated. The residue was purified using silica gel chromatography using 1:1 ethyl acetate:hexane to ethyl acetate as eluant. The desired amide sulfonamide was isolated as a foam (282 mg, 16%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06696449B2
Source datasetuspto-grants-2004_02
ORD IDord-53c6fbfbf5de47ecb47eb30c4e9dd80e
Source noteuspto-grants-2004_02