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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1095460Generated: October 26, 2026

Hydroxyamine hydrochloride → HCID 178526378, compound

https://huagongshe.com/reaction/1095460

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantN'-(3,6-dibromopyrazin-2-yl)-n,n-dimethyl-formamidineHCID 57589986—
SolventMethanolHCID 887—
ProductHCID 178526378HCID 178526378—

Reaction Steps

To a solution of N′-(3,6-dibromo-pyrazin-2-yl)-N,N-dimethylformamidine (18.6 g, 60.80 mmol) in methanol (200 mL) is added hydroxylamine hydrochloride (5.91 g, 85.12 mmol) in one portion. The reaction is stirred at room temperature for 16 hours. The solvent is evaporated and the solid residue is treated with cold (ice cooling) water and collected by filtration. The precipitate is washed twice with water and petroleum ether and dried in vacuo yielding the title compound. 1H-NMR (400 MHz, d6-DMSO) □(ppm) 7.82 (br s, 1H), 8.21 (s, 1H), 8.34 (m, 1H), 11.17 (br s, 1H). LCMS: Rt 3.17 min (98.7%), m/z (APCI) 295 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08138193B2
Source datasetuspto-grants-2012_03
ORD IDord-51e02e96dcf848a0a494a0f074eec6e1
Source noteuspto-grants-2012_03