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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 11722Generated: October 26, 2026

7-Chloro-benzo[1,4]dioxin-2-one → 2-(4-Chloro-2-hydroxy-phenoxy)-1-[4-(4-fluoro-benzyl)-(2R)-2-methyl-piperazin-1-yl]-ethanone

https://huagongshe.com/reaction/11722

Reaction equation

Participants

RoleNameHCIDCharge
Reactant7-Chloro-benzo[1,4]dioxin-2-oneHCID 3255318—
Reactant(r)-1-(4-Fluorobenzyl)-3-methylpiperazineHCID 11600914—
SolventTolueneHCID 1140—
Product2-(4-Chloro-2-hydroxy-phenoxy)-1-[4-(4-fluoro-benzyl)-(2R)-2-methyl-piperazin-1-yl]-ethanoneHCID 6965585652.9%

Reaction Conditions

Temperature95 °C

Reaction Steps

To a solution of 7-chloro-benzo[1,4]dioxin-2-one (0.845 g, 4.81 mmol) in toluene (25 mL) was added (3R)-1-(4-fluoro-benzyl)-3-methyl-piperazine (1.003 g, 4.81 mmol). The resulting mixture was heated to 95° C. overnight. The reaction was cooled to ambient temperature, filtered and concentrated in vacuo. Chromatography on silica gel gave the title compound (˜1 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07098212B2
Source datasetuspto-grants-2006_08
ORD IDord-6326dfff423e40298d12cdfe41a6ac19
Source noteuspto-grants-2006_08