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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2255140Generated: October 29, 2026

Methane → 1-[3,3-Bis(4-fluorophenyl)propyl]piperazine

https://huagongshe.com/reaction/2255140

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethaneHCID 297—
Reactant1-[3,3-Bis(4-fluorophenyl)-2-propenyl]-4-(phenylmethyl)piperazine dihydrochlorideHCID 20087961—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Product1-[3,3-Bis(4-fluorophenyl)propyl]piperazineHCID 1388328299.8%

Reaction Steps

A mixture of 32,5 g of 1-[3,3-bis(4-fluorophenyl)-2-propenyl]-4-(phenylmethyl)piperazine dihydrochloride and 3,3 g of 5% Pd at activated charcoal in 150 ml of methanol and 100 ml of water was hydrogenated under 60 psi. The catalyst was filtered off and after evaporation of the solvent basification with sodium hydroxide was achieved. The base was extracted with ethyl acetate and the organic phase was washed, dried and evaporated to yield 21,5 g (90,7%) of crude 1-[3,3-bis(4-fluorophenyl)propyl]piperazine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05238939
Source datasetuspto-grants-1993_08
ORD IDord-e3b635e191014f5f80c5db21e28d3dfb
Source noteuspto-grants-1993_08