HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydroxyamine hydrochloride → HCID 178526378, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydroxyamine hydrochloride | HCID 443297 | — |
| Reactant | N'-(3,6-dibromopyrazin-2-yl)-n,n-dimethyl-formamidine | HCID 57589986 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 178526378 | HCID 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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08138193B2 |
| Source dataset | uspto-grants-2012_03 |
| ORD ID | ord-51e02e96dcf848a0a494a0f074eec6e1 |
| Source note | uspto-grants-2012_03 |