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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1268378Generated: November 1, 2026

1-(2-Methoxyphenyl)piperazine → HCID 18544411, compound

https://huagongshe.com/reaction/1268378

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-Methoxyphenyl)piperazineHCID 1346—
Reactant1,2-DimethoxyethaneHCID 8071—
Reactant1-(4-bromophenyl)-3-methylene-2-pyrrolidinoneHCID 321904—
SolventWaterHCID 962—
ProductHCID 18544411HCID 1854441181.4%

Reaction Steps

1.31 g of 1-(4-bromophenyl)-3-methylene-2-pyrrolidinone and 2.00 g of 4-(2-methoxyphenyl)piperazine were mixed with 5 ml of ethylene glycol dimethyl ether. The mixture was refluxed for 2 hours and then cooled. Thereto was added water. The mixture was subjected to extraction with ethyl acetate twice. The organic layer was dried over anhydrous magnesium sulfate and then concentrated to obtain an oily material. The oily material was purified by silica gel column chromatography using a mixed solvent of chloroform/methanol=40/1 to obtain 1.88 g of oily 1-(4-bromophenyl)-3-[4-(2-methoxyphenyl)piperazine-1-yl]methyl-2-pyrrolidinone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06555694B1
Source datasetuspto-grants-2003_04
ORD IDord-5faf62f0f7b342d9a855d86368fc218f
Source noteuspto-grants-2003_04