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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 429136Generated: October 28, 2026

1-(2-Methoxyphenyl)piperazine → 2-(4-Trichloroacetylpiperazin-1-yl) anisole

https://huagongshe.com/reaction/429136

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-Methoxyphenyl)piperazineHCID 1346—
ReactantTrichloroacetyl chlorideHCID 6420—
ReactantDiisopropylethylamineHCID 81531—
SolventDichloromethaneHCID 6344—
Product2-(4-Trichloroacetylpiperazin-1-yl) anisoleHCID 338311491%

Reaction Steps

A solution of 1-(2-methoxyphenyl) piperazine (7.0 g) in dichloromethane (30 ml) was added over 0.25 h to a stirred solution of trichloroacetyl chloride (4.06 ml) in dichloromethane (40 ml) at room temperature under argon. Diisopropylethylamine (5.95 ml) was then added and the whole was stirred for 18 h. The reaction mixture was washed with water (2×100 ml), dried (Na2SO4) and concentrated to give the title compound (D3) as an oil (11.2 g, 91%). MH+337/339.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06316450B1
Source datasetuspto-grants-2001_11
ORD IDord-ffc611fd850b4532b41cec8f3e56df6e
Source noteuspto-grants-2001_11