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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2246408Generated: November 3, 2026

Hydrochloric Acid → HCID 11755176, compound

https://huagongshe.com/reaction/2246408

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantUreaHCID 1176—
ReactantMethyl acetoacetateHCID 7757—
ReactantHCID 85902263HCID 85902263—
SolventTetrahydrofuranHCID 8028—
ProductHCID 11755176HCID 11755176—

Reaction Steps

A solution of methylacetoacetate (1.2 g, 8.5 mmol), 2-methoxy-6-pentadecyl benzaldehyde (3.1 g, 8.5 mmol) and urea (1.00 g, 17 mmol) in tetrahydrofuran (20 mL) was heated to reflux (65-70° C.) in the presence of hydrochloric acid (30%) for 7 h. The reaction mixture after being cooled to room temperature was poured into crushed ice (20 g) and stirred for 5 min. The viscous liquid was extracted with ethylacetate (40 mL) and was washed with 1N hydrochloric acid, water, sodium bicarbonate and brine. After drying over anhydrous sodium sulfate, the solvent was evaporated to yield light yellow oil. This crude product was purified by flash column chromatography and recrystallized from hexane to get white crystalline solid of title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07687511B2
Source datasetuspto-grants-2010_03
ORD IDord-9541122df38e43c3b7b8d5de5f84096f
Source noteuspto-grants-2010_03