Hydrochloric Acid → 2-(2-Chloroethyl)piperidine--hydrogen chloride (1/1)

A 27.2 g (0.2 mole) sample of 2-(2-hydroxyethyl)piperidine was treated with ethereal hydrogen chloride and the salt was dried briefly. The solid was dissolved in 125 mL of warm chloroform and then 33.5 mL (0.46) of thionyl chloride was added in portions to the solution. The mixture was refluxed for 2.5 hr. The reaction mixture was cooled to room temperature, and the solvent evaporated in vacuo to a brown solid. The solid was recrystallized from ethanol-ether to give 17 g (46% yield) of the title compound as solid, mp=160°-162° C.

1. customthe salt was dried briefly
2. dissolutionThe solid was dissolved in 125 mL of warm chloroform
3. addition33.5 mL (0.46) of thionyl chloride was added in portions to the solution
4. temperatureThe mixture was refluxed for 2.5 hr
5. customthe solvent evaporated in vacuo to a brown solid
6. customThe solid was recrystallized from ethanol-ether

ORD-Eintrag

ord-e1860fa00b104be2bf3a6566ba3bcca4

Quelldatensatz

uspto-grants-1987_07

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US04683239