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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1110799Generated: November 2, 2026

Potassium Iodide → 1-[2-(3,4-Dihydro-1(2H)-benzopyran-4-yl)ethyl]-4-(4-hydroxy-3-methoxyphenyl)piperidine

https://huagongshe.com/reaction/1110799

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium IodideHCID 4875—
Reactant4-(2-bromoethyl)-3,4-dihydro-2H-benzopyranHCID 14330282—
Reactant2-Methoxy-4-(piperidin-4-yl)phenolHCID 22154252—
SolventMethyl Ethyl KetoneHCID 6569—
Product1-[2-(3,4-Dihydro-1(2H)-benzopyran-4-yl)ethyl]-4-(4-hydroxy-3-methoxyphenyl)piperidineHCID 22154226—

Reaction Steps

1-[2-(3,4-Dihydro-1(2H)-benzopyran-4-yl)ethyl]-4-(4-hydroxy-3-methoxyphenyl)piperidine is prepared by proceeding as in Example 48 but starting with 4-(4-hydroxy-3-methoxyphenyl)piperidine, 4-(2-bromoethyl)-3,4-dihydro-2H-benzopyran (0.49 g) and potassium iodide (0.5 g) in 2-butanone (35 cc).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04977166
Source datasetuspto-grants-1990_12
ORD IDord-a7936aebf7e4409cb6a49e00715abfc4
Source noteuspto-grants-1990_12