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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1296669Generated: October 30, 2026

Piperazine → 2-[{4-(2-Pyridinyl)Benzyl}Oxy]-6-(1-Piperazinyl)Pyrazine

https://huagongshe.com/reaction/1296669

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantPotassium CarbonateHCID 11430—
Reactant(4-(Pyridin-2-yl)phenyl)methanolHCID 1515239—
Reactant4-Pyridin-2-ylbenzaldehydeHCID 1515240—
Reactant2-Chloro-6-[{4-(2-pyridinyl)benzyl}oxy]pyrazineHCID 18186935—
Product2-[{4-(2-Pyridinyl)Benzyl}Oxy]-6-(1-Piperazinyl)PyrazineHCID 18186937—

Reaction Steps

The title compound was prepared according to the procedure of example 50, step 2, starting from 2-chloro-6-[{4-(2-pyridinyl)benzyl}oxy]pyrazine (2.73 g, 9.16 mmol; obtained according to the procedure of example 50, step 1, starting from 4-(2-pyridinyl)benzyl alcohol*), piperazine (2.41 g, 27.9 mmol) and K2CO3 (1.33 g, 9.62 mmol) with the exception that the final filtration through alumina was omitted. The yield of the of the title compound was 2.06 g (65%) which was obtained as a beige colored oil that solidified when refrigerated. Purity 100% (HPLC). MS m/z 347 (M)+. HRMS m/z calcd for C20H21N5O (M)+ 347.1746, found 347.1749. *Obtained by reduction (NaBH4) of 4-(2-pyridyl)benzaldehyde.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07247633B2
Source datasetuspto-grants-2007_07
ORD IDord-b295db703f8c42608a69355c3bbef798
Source noteuspto-grants-2007_07