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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1826085Generated: October 31, 2026

Pyridine → HCID 86589855, compound

https://huagongshe.com/reaction/1826085

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantHCID 11010838HCID 11010838—
SolventEthanolHCID 702—
ProductHCID 86589855HCID 8658985593.3%

Reaction Steps

A mixture of ethyl 2-ethyl-3-(3-formyl-4-methoxyphenyl)propanoate (1.06 g, 4.01 mmol), hydroxylamine hydrochloride (293 mg, 4.22 mmol), pyridine (1 mL) and ethanol (20 mL) was refluxed for 6 hours. After cooling, the mixture was concentrated and the residue was dissolved in ethyl acetate, which was washed with 1 mol/L hydrochloric acid, saturated aqueous solution of sodium hydrogencarbonate and brine, dried over anhydrous sodium sulfate, and then concentrated. The residue was purified by silica gel column chromatography (eluent: n-hexane:ethyl acetate=6:1 v/v) to afford 1.00 g (89%) of the title compound as a pale yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07049342B2
Source datasetuspto-grants-2006_05
ORD IDord-410f5fec491348f195ecf20c9dae3058
Source noteuspto-grants-2006_05