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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 499729Generated: October 30, 2026

Water → HCID 68460883, compound

https://huagongshe.com/reaction/499729

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthylene OxideHCID 6354—
ReactantHCID 66607530HCID 66607530—
SolventTetrahydrofuranHCID 8028—
SolventLithium diisopropylamideHCID 2724682—
ProductHCID 68460883HCID 6846088378%

Reaction Conditions

Temperature0 °C

Reaction Steps

Under a nitrogen stream, to 4-bromo-2-((4-ethylphenyl)methyl)thiophene (2.80 g, 10.0 mmol) in anhydrous THF (40 ml), LDA (2.0 M, 5.50 ml, 11.0 ml) was added dropwise at −78° C. over 5 minutes. After the reaction mixture was stirred at 0° C. for 30 minutes, a THF solution of ethylene oxide (10 ml) was added dropwise at −78° C. The reaction mixture was warmed to room temperature and stirred for 3 hours. After addition of water, the reaction mixture was extracted with ether. The organic layer was washed with saturated aqueous sodium chloride, dried over anhydrous sodium sulfate, and then evaporated under reduced pressure to remove the solvent. The resulting residue was purified by silica gel column chromatography (developing solution=ethyl acetate:n-hexane (1:9)) to give the titled compound (2.55 g, 78%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07767651B2
Source datasetuspto-grants-2010_08
ORD IDord-78d942227bea42ae9c05e11bffce5500
Source noteuspto-grants-2010_08