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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1250763Generated: October 27, 2026

Dihydrocoumarin → 3-(2-Hydroxyphenyl)-1-(4-methylpiperazino)-1-propanone

https://huagongshe.com/reaction/1250763

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDihydrocoumarinHCID 660—
Reactant1-MethylpiperazineHCID 53167—
Product3-(2-Hydroxyphenyl)-1-(4-methylpiperazino)-1-propanoneHCID 18520257103.4%

Reaction Conditions

Temperature80 °C

Reaction Steps

N-Methylpiperazine (1.23 g) was added to 3,4-dihydrocoumarine (1.80 g) and stirred for 2 hours at 80° C., thereby yielding the entitled compound (3.12 g) as pale brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06339154B1
Source datasetuspto-grants-2002_01
ORD IDord-2563a77ff48b4d05b096c4b9b7a2f96b
Source noteuspto-grants-2002_01