Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 6790Generated: October 25, 2026

1-Fluoro-3-iodobenzene → 1-[3-(3-Fluorophenyl)-2-propynyl]4-methylpiperidine

https://huagongshe.com/reaction/6790

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Fluoro-3-iodobenzeneHCID 70725—
Reactant4-Methyl-1-(prop-2-yn-1-yl)piperidineHCID 11355509—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
Catalystpalladium(II) acetateHCID 167845—
CatalystTri(o-toluoyl)phosphineHCID 19696886—
SolventDiethylamineHCID 8021—
Product1-[3-(3-Fluorophenyl)-2-propynyl]4-methylpiperidineHCID 989943856.2%

Reaction Steps

A mixture of 3-fluoroiodobenzene (8.88 g), 4-methyl-1-(2-propynyl)piperidine (6.80 g), palladium acetate (0.045 g), tri-o-toloylphosphine (0.24 g) and copper(I) iodide (0.1 g) in dry diethylamine (50 ml) was heated under reflux for 5 hours. The solvent was removed under reduced pressure and the residue was taken up in diethyl ether and washed with water. The organic phase was dried over magnesium sulfate and the solvent was removed under reduced pressure. Distillation of the residue under reduced pressure gave an oil (5.20 g) of boiling point 105° C./0.07 mm Hg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07084158B2
Source datasetuspto-grants-2006_08
ORD IDord-407eb598551c4c3b88f8f45387ed5837
Source noteuspto-grants-2006_08