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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1468807Generated: October 27, 2026

Hydroxyamine hydrochloride → HCID 178526378, compound

https://huagongshe.com/reaction/1468807

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) δ (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 numberUS09006237B2
Source datasetuspto-grants-2015_04
ORD IDord-d818f24cc40f4e15a5a832f87f779ba5
Source noteuspto-grants-2015_04