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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1499200Generated: November 1, 2026

Potassium Carbonate → HCID 117942003, compound

https://huagongshe.com/reaction/1499200

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-Bromo-2-fluorobenzoic acidHCID 302681—
ReactantBenzyl piperazine-1-carboxylateHCID 643495—
SolventDimethylformamideHCID 6228—
ProductHCID 117942003HCID 117942003—

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 4-bromo-2-fluorobenzoic acid (2 g, 9.1 mmol), benzyl piperazine-1-carboxylate (2.4 g, 10.9 mmol) and K2CO3 (2.5 g, 18.26 mmol) in DMF (40 mL) was stirred at 150° C. for 36 h. The reaction was then cooled to RT and extracted with ethyl acetate, 3 N HCl, brine, dried over Na2SO4, filtered and concentrated in vacuo to provide 2-(4-((benzyloxy) carbonyl)piperazin-1-yl)-4-bromobenzoic acid as yellow oil that was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09199994B2
Source datasetuspto-grants-2015_12
ORD IDord-1a5f54ef07db41b8aa4a9c79582d17c7
Source noteuspto-grants-2015_12