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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1413549Generated: October 25, 2026

3-Amino-4-hydroxybenzenesulfonic acid → HCID 20292504, compound

https://huagongshe.com/reaction/1413549

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Amino-4-hydroxybenzenesulfonic acidHCID 7385—
ReactantEthyl 4-(pyrrolidin-1-yl)benzoateHCID 773371—
ProductHCID 20292504HCID 20292504—

Reaction Steps

In accordance with the procedure of Example 1, 10.0 g of ethyl 4-pyrrolidinobenzoate were reacted with 8.7 g of 2-aminophenol-4-sulfonic acid to yield 2-(p-pyrrolidinophenyl)-benzoxazole-5-sulfonic acid, melting point 310° (with decomposition).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04250315
Source datasetuspto-grants-1981_02
ORD IDord-18708b18689843bf988f045cbb7b70f6
Source noteuspto-grants-1981_02