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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 589293Generated: October 29, 2026

Furfural → HCID 178426101, compound

https://huagongshe.com/reaction/589293

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFurfuralHCID 7362—
Reactant4-Chloro-N-hydroxy-2-methylbenzamidineHCID 5152148—
CatalystPiperidineHCID 8082—
ProductHCID 178426101HCID 17842610118.1%

Reaction Conditions

Temperature10 °C

Reaction Steps

A mixture of 2-furancarboxaldehyde (166 mL, 192 mg, 2.0 mmol), 4-chloro-N′-hydroxy-2-methylbenzimidamide (368 mg, 2.0 mmol) and one drop of piperidine was heated to 10° C. for 4 h. The mixture was cooled to room temperature and purified by automated column chromatography on the ISCO COMPANION (SiO2, gradient heptanes/ethyl acetate) to give the 3-(4-chloro-2-methylphenyl)-5-(furan-2-yl)-4,5-dihydro-1,2,4-oxadiazole product (95 mg) with a yield of 18%. LC-MS [M+H] 263 (C13H11ClN2O2+H, expected 263.05)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09232800B2
Source datasetuspto-grants-2016_01
ORD IDord-21a42dd58c2249dc83c587efe413fbc4
Source noteuspto-grants-2016_01