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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1896135Generated: October 26, 2026

Water → (S)-2-(4-benzyl-1-(2-bromo-5-methylphenyl)piperazin-2-yl)ethanol

https://huagongshe.com/reaction/1896135

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant4-Bromo-3-fluorotolueneHCID 573280—
Reactant(S)-2-(4-benzylpiperazin-2-yl)ethanolHCID 23395653—
ReactantSodium t-butoxideHCID 23676156—
SolventDimethyl SulfoxideHCID 679—
SolventEthyl AcetateHCID 8857—
Product(S)-2-(4-benzyl-1-(2-bromo-5-methylphenyl)piperazin-2-yl)ethanolHCID 66769566—

Reaction Steps

To a solution of (S)-2-(4-benzylpiperazin-2-yl)ethanol (150 mg, 0.681 mmol) and 1-bromo-2-fluoro-4-methylbenzene (167 mg, 885 mmol) in dimethyl sulfoxide (5 mL) was added sodium tert-butoxide (164 mg, 1.70 mmol). The reaction mixture was allowed to stir for 16 hours at room temperature before addition of water and ethyl acetate. The organic layer was separated and concentrated onto silica gel. Purification via flash chromatography (0-30% methanol/dichloromethane) afforded the title compound. 1H NMR (300 MHz, DMSO-d6) δ ppm 7.40 (d, J=7.80 Hz, 1 H), 7.18-7.35 (m, 5 H), 6.92 (d, J=1.36 Hz, 1 H), 6.65-6.73 (m, 1 H), 4.08 (t, J=6.44 Hz, 2 H), 3.36-3.51 (m, 2 H), 2.55-2.89 (m, 6 H), 1.87-1.99 (m, 1 H), 1.68-1.77 (m, 2 H); MS (APCI+) m/z 389, 391 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518933B2
Source datasetuspto-grants-2013_08
ORD IDord-a30edc3092ff42278eeac614ac1aadbf
Source noteuspto-grants-2013_08