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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1838272Generated: October 27, 2026

Pyridine → HCID 18753376, compound

https://huagongshe.com/reaction/1838272

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantTriethylamineHCID 8471—
Reactant4-Penten-1-OLHCID 13181—
ReactantN-[(3,4-Dimethoxyphenyl)methylidene]hydroxylamineHCID 16577—
ReactantChlorosuccinimideHCID 31398—
ReactantSodium BicarbonateHCID 516892—
SolventTetrahydrofuranHCID 8028—
ProductHCID 18753376HCID 1875337690.6%

Reaction Steps

(3,4-dimethoxyphenyl)(hydroxyimino)methane (1.05 g, 5.801 mmol) was dissolved in 30 mL of tetrahydrofuran under N2. After adding N-chlorosuccinimide (0.93 g, 6.96 mmol) and pyridine (46.9 L, 0.580 mmol) at room temperature, the reaction was continued for 30 min at 60. After cooling to room temperature, 4-pentene-1-ol (0.90 mL, 8.701 mmol) dissolved in 2 mL of tetrahydrofuran was added. Then, after adding triethylamine (0.97 mL, 6.961 mmol) dissolved in 2 mL of tetrahydrofuran, the reaction was continued for 1 hr at 50. When the reaction was completed, saturated NaHCO3 solution was added, and then the same was extracted with ethyl acetate. After drying over anhydrous MgSO4, the crude product was purified by column chromatography on silica gel (hexane/ethyl acetate=1/2, v/v) to obtain 1.38 g (90.6%) of the target compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06673800B2
Source datasetuspto-grants-2004_01
ORD IDord-b6adc6a4ef22477fbd8474d79663a82b
Source noteuspto-grants-2004_01