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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 737129Generated: October 27, 2026

Toluene → 3-(S)-benzyl-1-(2'-trifluoromethyl-biphenyl-4-ylmethyl)-piperazine

https://huagongshe.com/reaction/737129

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
ReactantSodium CarbonateHCID 10340—
Reactant2-(Trifluoromethyl)benzeneboronic acidHCID 2734387—
Reactant3-(S)-benzyl-1-(4-bromobenzyl)-piperazineHCID 57849462—
CatalystHCID 178418397HCID 178418397—
SolventEthanolHCID 702—
Product3-(S)-benzyl-1-(2'-trifluoromethyl-biphenyl-4-ylmethyl)-piperazineHCID 57849497—

Reaction Conditions

Temperature120 °C

Reaction Steps

0.13 g of 3-(S)-benzyl-1-(4-bromo-benzyl)-piperazine were combined with 1.5 equiv. of 2-trifluoromethylphenyl boronic acid, 0.05 equiv. of tetrakis(triphenylphosphine)palladium(0), 2M aqueous sodium carbonate solution, toluene and ethanol. The reaction mixture was heated in a sealed tube at 120° C. overnight. The reaction mixture was filtered through Celite and concentrated in vacuo. The residue was diluted with water and extracted with ethyl acetate. The combined organic phases were washed with brine, dried over sodium sulfate, filtered and concentrated in vacuo. The crude material was purified by flash chromatography to afford 0.18 g of the title compound. ES MS (+) m/z 411.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07595397B2
Source datasetuspto-grants-2009_09
ORD IDord-ff45f35a42c0408caa737d3a47315698
Source noteuspto-grants-2009_09