HuagongsheHuagongshe Chemistry Print Report · For research reference only
1-Methyl-4-(3-nitropyridin-2-yl)piperazine → Piperazine, 1-(3-amino-2-pyridyl)-4-methyl-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1-Methyl-4-(3-nitropyridin-2-yl)piperazine | HCID 2764523 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | Piperazine, 1-(3-amino-2-pyridyl)-4-methyl- | HCID 199808 | 52% |
Reaction Steps
To a stirring solution of 1-methyl-4-(3-nitro-pyridin-2-yl)-piperazine (LXXXIII) (1.30 g, 5.85 mmol) in MeOH (15 mL) was added 10% Pd/C. The solution was purged with hydrogen. The solution was stirred at room temperature for 16 h under hydrogen. The solution was filtered through a pad of Celite and concentrated to a residue under vacuum. The residue was purified by column chromatography (100% CHCl3→2:98 MeOH[7N NH3]:CHCl3) to afford 2-(4-methylpiperazin-1-yl)pyridin-3-amine (LXXXIV) (0.466 g, 2.42 mmol, 52% yield) as a tan solid. ESIMS found for C10H16N4 m/z 192.4 (M+H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09221793B2 |
| Source dataset | uspto-grants-2015_12 |
| ORD ID | ord-b32408f0d31e4720957a24557202e23d |
| Source note | uspto-grants-2015_12 |