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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1982282Generated: November 1, 2026

Hydrochloric Acid → HCID 884458, compound

https://huagongshe.com/reaction/1982282

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethyl 4-aminobenzoateHCID 12082—
ReactantDimethylsulphamoyl chlorideHCID 83372—
SolventPyridineHCID 1049—
ProductHCID 884458HCID 88445865.4%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 8.5 g of methyl 4-aminobenzoate 13 and 43 ml of pyridine is added 12.1 g of dimethylsulfamoyl chloride, and the mixture is stirred at 50° C. for 2 hours. The reaction mixture to which is added ice-water is acidified with 6N hydrochloric acid and extracted with methylene chloride. The organic layer is washed with water, dried, and concentrated under reduced pressure. The residue is washed with ether-isopropyl ether to give 9.5 g (yield: 65.4%) of methyl 4-(dimethylaminosulfonyl)aminobenzoate 14.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04595780
Source datasetuspto-grants-1986_06
ORD IDord-edd99833a7c34631951ba1bf7a3d51d9
Source noteuspto-grants-1986_06