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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1684945Generated: November 1, 2026

Hydroxyamine hydrochloride → HCID 178526378, compound

https://huagongshe.com/reaction/1684945

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 numberUS08148369B2
Source datasetuspto-grants-2012_04
ORD IDord-8ae655ef92b44142913edb6484a7ddb3
Source noteuspto-grants-2012_04