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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 6788Generated: October 25, 2026

2-Iodotoluene → 1-(3-o-Tolyl-2-propynyl)piperidine

https://huagongshe.com/reaction/6788

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-IodotolueneHCID 5128—
Reactant1-(Prop-2-yn-1-yl)piperidineHCID 336652—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418903HCID 178418903—
SolventDiethylamineHCID 8021—
Product1-(3-o-Tolyl-2-propynyl)piperidineHCID 1205678362.3%

Reaction Steps

A mixture of 2-iodotoluene (6.54 g), N-(2-propynyl)piperidine (3.69 g), dichlorobis(triphenylphosphino)palladium(II) (0.05 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 concentrated completely under reduced pressure. Distillation of the residue under reduced pressure gave 3.98 g of an oil of boiling point 96–98° C./0.08 mm Hg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07084158B2
Source datasetuspto-grants-2006_08
ORD IDord-0f8d0671097c4c1fb7b5e5e1778ceb8b
Source noteuspto-grants-2006_08