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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2304672Generated: October 30, 2026

Dimethylformamide → 2-(3,4-Dichlorophenyl)-1-{4-[(2-Piperidyl)Ethoxy]Benzyl}-1,2,3,4-Tetrahydroisoquinolin-6-Ol

https://huagongshe.com/reaction/2304672

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
ReactantPiperidine, 1-(2-chloroethyl)-, hydrochlorideHCID 74826—
Reactant2-(3,4-Dichlorophenyl)-1-(4-hydroxybenzyl)-6-(phenylmethoxy)-1,2,3,4-tetrahydroisoquinolineHCID 23440744—
Product2-(3,4-Dichlorophenyl)-1-{4-[(2-Piperidyl)Ethoxy]Benzyl}-1,2,3,4-Tetrahydroisoquinolin-6-OlHCID 6931285870%

Reaction Steps

To a solution of 2-(3,4-dichlorophenyl)-1-(4-hydroxybenzyl)-6-(phenylmethoxy)-1,2,3,4-tetrahydroisoquinoline (0.5 g, 0.001 mol) in DMF (3 ml) was added potassium carbonate (0.2 g, 0.0015 mol). The reaction was allowed to stir for twenty minutes. To the flask was added 1-(2-chloroethyl)piperidine monohyrdochloride (0.22 g, 0.0012 mol). The reaction was allowed to stir at 80° C. overnight. Solvent was removed. The reaction was diluted with ethyl acetate and water. The aqueous layer was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgSO4, filtered and concentrated to yield the title compound (0.42 g, 70% yield): ES-MS (m/z) 601 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06436923B1
Source datasetuspto-grants-2002_08
ORD IDord-725a2219025a4d7a8208aa286132623b
Source noteuspto-grants-2002_08