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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 218086Generated: October 30, 2026

4-Methylpiperazine-1-carbothioamide → 4-[5-Fluoro-2-(4-methyl-piperazin-1-yl)thiazol-4-yl]-benzoic acid methyl ester

https://huagongshe.com/reaction/218086

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Methylpiperazine-1-carbothioamideHCID 2113086—
Reactant4-(2-Bromo-2-fluoro-acetyl)-benzoic acid methyl esterHCID 57551970—
SolventEthanolHCID 702—
Product4-[5-Fluoro-2-(4-methyl-piperazin-1-yl)thiazol-4-yl]-benzoic acid methyl esterHCID 5755194174%

Reaction Steps

4-(2-Bromo-2-fluoro-acetyl)-benzoic acid methyl ester (1.18 mmol) and 4-methyl-piperazine-1-carbothioic acid amide (1.18 mmol) were dissolved in ethanol (10 mL). The reaction was heated at reflux for 2 h. The reaction was cooled to RT causing the product to precipitate. The product was collected by filtration and washed with cold ethanol. The product was given an aqueous sodium bicarbonate work up to yield the title compound as a colourless oil (74%). MS (ES+) 337 (M+H, 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198283B2
Source datasetuspto-grants-2012_06
ORD IDord-4e8b1392e4e243df9071fd298295c4cf
Source noteuspto-grants-2012_06