Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 257767Generated: November 2, 2026

Hydrochloric Acid → HCID 19092324, compound

https://huagongshe.com/reaction/257767

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl chloroformateHCID 10928—
Reactant2-Amino-4-sulfamoylbenzoic acidHCID 19092325—
SolventSodium HydroxideHCID 14798—
ProductHCID 19092324HCID 19092324—

Reaction Steps

To a solution of 2-amino-4-sulfamoylbenzoic acid (1.32 g) in 2N sodium hydroxide (6 ml) was added dropwise ethyl chloroformate (1.9 ml) and 2N sodium hydroxide on an ice bath. After stirring for 3 hours, the reaction mixture was acidified with 1N hydrochloric acid, extracted with ethyl acetate. Combined organic extracts were washed in turn with water and brine, dried over magnesium sulfate and evaporated to give an amorphous of 2-ethoxycarbonylamino-4-sulfamoylbenzoic acid (1.99 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05264438
Source datasetuspto-grants-1993_11
ORD IDord-5572a17979674af897811a7f66d172a3
Source noteuspto-grants-1993_11