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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1700563Generated: October 30, 2026

Hydrochloric Acid → HCID 178431138, compound

https://huagongshe.com/reaction/1700563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant6-(2,3-Dichlorophenyl)-3-methyl-4,5,6,7-tetrahydrobenzofuran-4-oneHCID 18317730—
ReactantHCID 178418668HCID 178418668—
SolventEthanolHCID 702—
ProductHCID 178431138HCID 178431138162.4%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a mixture of 6-(2,3-dichlorophenyl)-3-methyl-4,5,6,7-tetrahydrobenzofuran-4-one (0.15 g) and aminoguanidine hydrochloride (56 mg) were added ethanol (10 ml) and 6N hydrochloric acid (0.044 ml), and the mixture was stirred at 90° C. for 2 hours and cooled. The reaction solution was concentrated under reduced pressure, and the residue was washed with ethanol, ethyl acetate and isopropylether, and dried to give (E)-6-(2,3-dichlorophenyl)-4-guanidinoimino-3-methyl-4,5,6,7-tetrahydrobenzofuran hydrochloride (Compound 43) (0.16 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06350749B1
Source datasetuspto-grants-2002_02
ORD IDord-2e97e7528bab4f6d96c4bca399d868da
Source noteuspto-grants-2002_02