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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 236568Generated: October 25, 2026

Potassium Carbonate → alpha-Ethyl-alpha-(4-chlorophenyl)-4-[3-(di-n-propylamino)-propoxy]-benzylalcohol

https://huagongshe.com/reaction/236568

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantDipropylaminopropyl chlorideHCID 12333917—
Reactantalpha-Ethyl-alpha-(4-chlorophenyl)-4-hydroxy-benzylalcoholHCID 14727318—
CatalystTetrabutylammonium hydrogen sulfateHCID 94433—
SolventEthyl AcetateHCID 8857—
Productalpha-Ethyl-alpha-(4-chlorophenyl)-4-[3-(di-n-propylamino)-propoxy]-benzylalcoholHCID 20216260—

Reaction Steps

13.1 g. of α-ethyl-α-(4-chlorophenyl)-4-hydroxy-benzylalcohol, 14 g. of anhydrous potassium carbonate, 9.8 g. of dipropylaminopropyl chloride and 0.85 g. of tetrabutyl ammonium hydrogensulfate in 135 ml. of ethyl acetate are slightly boiled for 20 hours, under stirring. After cooling the mixture, the solvent is evaporated in vacuo. To the residue water and benzene are added. The phases are separated, the benzene solution is washed with water, dried over anhydrous potassium carbonate, filtered and evaporated. The residue is purified by vacuum fractionation. 13.8 g. of the desired end product are obtained, boiling at 198° to 200° C./1.33 Pa.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04645779
Source datasetuspto-grants-1987_02
ORD IDord-207e32b5a3714d40af02fe0ad4959c98
Source noteuspto-grants-1987_02