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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1249566Generated: October 30, 2026

Trifluoroacetic acid → 4-[2,2-Bis(4-fluorophenyl)ethenyl]piperidine

https://huagongshe.com/reaction/1249566

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantHCID 13754500HCID 13754500—
Reactantalpha,alpha-Bis(4-fluorophenyl)-4-piperidineethanolHCID 13754513—
SolventTolueneHCID 1140—
Product4-[2,2-Bis(4-fluorophenyl)ethenyl]piperidineHCID 13754503—

Reaction Steps

The title compound was prepared in the same manner as the compound of example 6, starting with 25 g of alpha,alpha-bis(4-fluorophenyl)-4-piperidineethanol, 0.25 molar methylbenzene solvate and 50 mL of trifluoroacetic acid. Crystallization from hexane gave 19.6 g (83%) of the hexane solvate of 4-[2,2-bis(4-fluorophenyl)ethenyl]-piperidine, mp 84°-86° C. Analysis Calculated for C19H19F2N.O.15C6H14 : C, 76.54; H, 6.81; N, 4.49; F, 12.17. Found: C, 76.87; H, 6.72; 4.65; F, 12.12.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04632925
Source datasetuspto-grants-1986_12
ORD IDord-95bdbf6fb7a0479f88cdd5c073c7d8a2
Source noteuspto-grants-1986_12