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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 840133Generated: October 30, 2026

4-Chloro-2-toluidine → 1-(4-Chloro-o-tolyl)piperazine

https://huagongshe.com/reaction/840133

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chloro-2-toluidineHCID 7251—
Reactant1-(4-Fluoro-2-methylphenyl)piperazineHCID 18423072—
Product1-(4-Chloro-o-tolyl)piperazineHCID 10085273%

Reaction Steps

The title compound was prepared following the method described for the Compound 31A of Example 31 but starting from 4-chloro-2-methylaniline instead of 4-fluoro-2-methylaniline. Purification by flash chromatography (chloroform-2N ammonia in methanol 100:3 to 100:5) afforded the title compound (73%) as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06365591B1
Source datasetuspto-grants-2002_04
ORD IDord-9e21c63ea0f042a3b1f696420bad37f9
Source noteuspto-grants-2002_04