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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1058581Generated: October 27, 2026

Dichloromethane → 3-(4-Methylpiperazin-1-yl)benzoic acid

https://huagongshe.com/reaction/1058581

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
Reactant3-(4-Methylpiperazinyl)-benzoic acid tert-butyl esterHCID 54333530—
SolventTolueneHCID 1140—
SolventTrifluoroacetic acidHCID 6422—
Product3-(4-Methylpiperazin-1-yl)benzoic acidHCID 4741681—

Reaction Steps

3-(4-Methylpiperazinyl)-benzoic acid tert-butyl ester (4.1 g, 14.9 mmol) was dissolved in TFA: CH2Cl2 (70 ml, 1:1) and the reaction was stirred for 2 h at RT. The reaction mixture was diluted with toluene (100 ml), then was concentrated in vacuo and was used in the next reaction without further purification: MS (ES+) 221.3 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06518267B1
Source datasetuspto-grants-2003_02
ORD IDord-d3109afe8a8a4b86b0ce03a452ab6b4a
Source noteuspto-grants-2003_02