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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1814636Generated: October 30, 2026

Sulfanilamide → HCID 67484576, compound

https://huagongshe.com/reaction/1814636

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfanilamideHCID 5333—
ReactantDichloromethaneHCID 6344—
ReactantPhenyl chloroformateHCID 15891—
ReactantDiisopropylethylamineHCID 81531—
ProductHCID 67484576HCID 67484576—

Reaction Steps

The above 4-aminophenylsulfonamide (0.14 g) was dissolved in dichloromethane (6 mL), N,N-diisopropylethylamine (172 μL, 1 mmol) and phenyl chloroformate (122 μL, 0.92 mmol) and the resulting mixture was stirred at room temperature for 16 hours. The reaction mixture was diluted with dichloromethane (50 mL) and was washed with 1N hydrochloric acid (3×20 mL), water (3×20 mL), a mixture of water and a saturated solution of sodium hydrogen carbonate (1:1, 2×20 mL) and a mixture of water and a saturated solution of sodium chloride (1:1, 2×20 mL). Drying (MgSO4) and concentration in vacuo afforded crude (4-butylsulfamoylphenyl)carbamic acid phenyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06875760B2
Source datasetuspto-grants-2005_04
ORD IDord-c6aeaa84c3c24ad08e73f38f884567e1
Source noteuspto-grants-2005_04