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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 864421Generated: October 28, 2026

Pyridine → Benzyl 4-(3-nitropyridin-2-yl)piperazine-1-carboxylate

https://huagongshe.com/reaction/864421

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantBenzyl chloroformateHCID 10387—
ReactantSodium BicarbonateHCID 516892—
Reactant1-(3-Nitropyridin-2-yl)piperazineHCID 3778834—
SolventDichloromethaneHCID 6344—
ProductBenzyl 4-(3-nitropyridin-2-yl)piperazine-1-carboxylateHCID 21477687—

Reaction Steps

1-(3-Nitro-2-pyridinyl)piperazine is dissolved in 175 ml of methylene chloride and cooled to 0°. Then pyridine is added followed by benzylchloroformate (16.5 ml). The reaction is stirred 1.5 hr, then poured into saturated aqueous sodium bicarbonate and extracted with chloroform, dried over anhydrous sodium sulfate and concentrated in vacuo to afford the title compound, NMR (300 MHz, CDCl3) 8.34, 8.15, 7.38-7.32, 6.81, 5.17, 3.65 and 3.45 δ.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05563142
Source datasetuspto-grants-1996_10
ORD IDord-1291354c58a646f4b0369ff58bfb54ce
Source noteuspto-grants-1996_10