Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 918675Generated: November 1, 2026

Sulfuric Acid → HCID 21505996, compound

https://huagongshe.com/reaction/918675

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant3-Amino-4-phenoxy-5-sulfamoylbenzoic acidHCID 119927—
Solvent1-PentanolHCID 6276—
ProductHCID 21505996HCID 21505996—

Reaction Steps

A mixture of 3-amino-4-phenoxy-5-sulphamyl-benzoic acid (6 g), n-pentanol (60 ml), and conc. sulphuric acid (0.5 ml) was refluxed for 24 hours. After cooling, the precipitated n-pentyl 3-n-pentylamino-4-phenoxy-5-sulphamyl-benzoate was isolated by filtration and recrystallized from n-pentanol. After drying in vacuo, the compound was obtained with a melting point of 138°-139°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03971819
Source datasetuspto-grants-1976_07
ORD IDord-9e637269948a4f7ea0d24980a7824025
Source noteuspto-grants-1976_07