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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 896076Generated: October 30, 2026

Ethanol → 6,8-Dibromoimidazo[1,2-a]pyrazine

https://huagongshe.com/reaction/896076

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant2-Amino-3,5-dibromopyrazineHCID 620004—
Product6,8-Dibromoimidazo[1,2-a]pyrazineHCID 15025843—

Reaction Steps

A solution of 1.00 equivalents (eq.) of 3,5-dibromo-2-aminopyrazine 1 in ethanol is treated with 2.00 eq. of α-bromoaldehyde 2 at room temperature (RT) and heated for 48 hours (hr). The solvent is removed under reduced pressure and the residue is triturated with diethyl ether and filtered to give the HBr salt 3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06919340B2
Source datasetuspto-grants-2005_07
ORD IDord-0787d25f1e61467194acbab7800f10ec
Source noteuspto-grants-2005_07