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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 441421Generated: October 26, 2026

Sodium Carbonate → 2-[2-(4-Hydroxy-4-phenylpiperidino)-ethyl]-2,3-dihydrobenzofuran

https://huagongshe.com/reaction/441421

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant4-Phenylpiperidin-4-olHCID 96387—
Reactant2-(2-Tosyloxyethyl)-2,3-dihydrobenzofuranHCID 54469994—
SolventMethyl Isobutyl KetoneHCID 7909—
Product2-[2-(4-Hydroxy-4-phenylpiperidino)-ethyl]-2,3-dihydrobenzofuranHCID 21331966—

Reaction Steps

The mixture of 4.6 g of 2-(2-tosyloxyethyl)-2,3-dihydrobenzofuran, 2.64 g of 4-hydroxy-4-phenylpiperidine, 10 g of anhydrous sodium carbonate and 100 ml of 4-methyl-2-pentanone is relfuxed for 48 hours. It is filtered, evaporated and the residue recrystallized from isopropanol-petroleum ether, to yield the 2-[2-(4-hydroxy-4-phenylpiperidino)-ethyl]-2,3-dihydrobenzofuran melting at 107°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04039676
Source datasetuspto-grants-1977_08
ORD IDord-eaadb055c411437da796978a45fc7ac1
Source noteuspto-grants-1977_08