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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 263188Generated: October 28, 2026

Hydroxyamine hydrochloride → 1-Hydroxy-3-(4,5,6,7-tetrahydrobenzo[b]thien-4-yl)urea

https://huagongshe.com/reaction/263188

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
Reactant4-Isocyanato-4,5,6,7-tetrahydro-1-benzothiopheneHCID 20537301—
SolventTriethylamineHCID 8471—
Product1-Hydroxy-3-(4,5,6,7-tetrahydrobenzo[b]thien-4-yl)ureaHCID 20348966—

Reaction Steps

The above compound is prepared in the manner described in Example 6, by allowing 4,5,6,7-tetrahydrobenzo[b]thien-4-yl isocyanate to react with hydroxylamine hydrochloride in the presence of triethylamine. The product melts at 158.5° C. to 160.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04156670
Source datasetuspto-grants-1979_05
ORD IDord-9d55d1c2b574410f9fa71b6f15058828
Source noteuspto-grants-1979_05