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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1666450Generated: October 30, 2026

Trifluoroacetic acid → 2-(2-Methyl-5-(piperidin-4-ylidenemethyl)phenoxy)-5-(trifluoromethyl)pyridine

https://huagongshe.com/reaction/1666450

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl 4-(4-methyl-3-(5-(trifluoromethyl)pyridin-2-yloxy)benzylidene)piperidine-1-carboxylateHCID 66876250—
SolventDichloromethaneHCID 6344—
Product2-(2-Methyl-5-(piperidin-4-ylidenemethyl)phenoxy)-5-(trifluoromethyl)pyridineHCID 66876020114.8%

Reaction Steps

To a solution of tert-butyl 4-(4-methyl-3-(5-(trifluoromethyl)pyridin-2-yloxy)benzylidene)piperidine-1-carboxylate (0.50 g, 0.0011 mol) in CH2Cl2 (5 mL) cooled to 0° C. under a N2 atmosphere was added TFA (0.85 mL, 0.011 mol) slowly. The resulting mixture was stirred for 2 h at RT. The reaction was concentrated under reduced pressure to give the title compound (440 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08044052B2
Source datasetuspto-grants-2011_10
ORD IDord-1b9bce544acc483bb6ba0a3bf2398805
Source noteuspto-grants-2011_10