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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1357632Generated: October 26, 2026

Piperazine → 2-[2-(5-Methyl-2-Phenyl-Oxazol-4-Yl)-Ethoxy]-6-(1-Piperazinyl)Pyrazine

https://huagongshe.com/reaction/1357632

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantPotassium CarbonateHCID 11430—
Reactant2-(5-Methyl-2-phenyl-4-oxazolyl)ethanolHCID 725585—
Reactant2-Chloro-6-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]pyrazineHCID 18186828—
Product2-[2-(5-Methyl-2-Phenyl-Oxazol-4-Yl)-Ethoxy]-6-(1-Piperazinyl)PyrazineHCID 18186885—

Reaction Steps

The title compound was prepared according to the procedure of example 50, step 2, starting from 2-chloro-6-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]pyrazine [2.90 g, 9.18 mmol; obtained according to the procedure of example 50, step 1, starting from 2-(5-methyl-2-phenyloxazol-4-yl)ethanol], piperazine (2.37 g, 27.5 mmol) and K2CO3 (1.27 g, 9.19 mmol) with the exception that the final filtration through alumina was omitted. The yield of the of the title compound was 2.09 g (62%) which was obtained as a light yellow oil that solidified when refrigerated. Purity 100% (HPLC). MS m/z 365 (M)+. HRMS m/z calcd for C20H23N5O2 (M)+ 365.1852, found 365.1855.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06593330B2
Source datasetuspto-grants-2003_07
ORD IDord-9f12006a030b4032bc257f996a1f8289
Source noteuspto-grants-2003_07