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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 660313Generated: October 28, 2026

Hydrochloric Acid → HCID 57742166, compound

https://huagongshe.com/reaction/660313

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantUreaHCID 1176—
ReactantHCID 12370790HCID 12370790—
SolventDimethylformamideHCID 6228—
ProductHCID 57742166HCID 57742166—

Reaction Steps

A solution of Ethyl 2-(4-amino-3-hydroxyphenyl)propanoate (205 mg, 0.978 mmol) in DMF (5 mL) was added urea (305 mg, 5.19 mmol) and refluxed for 5 hrs. The reaction mixture was cooled to room temperature and added water (30 mL). The mixture was acidified with conc. HCl (1 ml) and extracted with EtOAc. The organic layer was dried over MgSO4, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel using EtOAc:hexanes (1:2) as eluant.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08084484B2
Source datasetuspto-grants-2011_12
ORD IDord-fcbddd790caa4124aaa6d16dcf4623fd
Source noteuspto-grants-2011_12