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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 475626Generated: October 30, 2026

Bromide ion → HCID 57855843, compound

https://huagongshe.com/reaction/475626

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromide ionHCID 259—
ReactantWaterHCID 962—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
ReactantHCID 68984934HCID 68984934—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
ProductHCID 57855843HCID 57855843—

Reaction Steps

A 0.15 g quantity of the compound obtained in Example 229 and 0.17 ml of DBU were dissolved in 4 ml of ethanol, 0.14 g of ally bromide was then added to the obtained solution, and heating and refluxing were conducted for 2 hours. After cooling, water was added to the obtained reaction mixture, and ethyl acetate extraction was performed. The organic layer was washed twice with water, concentrated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=3:1). The obtained crystals were recrystallized from aqueous 80% ethanol, thereby yielding 90 mg of white powdery 3-[2-(3-allyloxy-4-difluoromethoxyphenyl)oxazol-4-yl]-1-(2-ethoxyphenyl)propan-1-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637559B2
Source datasetuspto-grants-2014_01
ORD IDord-214165e3d5bc44ee8e9f72600d357f0c
Source noteuspto-grants-2014_01