HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → 6-chloro-N-methyl-3-nitropyridin-2-amine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Methylamine | HCID 6329 | — |
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 2,6-Dichloro-3-nitropyridine | HCID 85239 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 6-chloro-N-methyl-3-nitropyridin-2-amine | HCID 10750094 | — |
Reaction Steps
2,6-Dichloro-3-nitropyridine (2.0 g, 10 mmol) and sodium carbonate (2.8 g, 25.9 mmol) were added to a round bottom flask under nitrogen, and suspended in ethanol (100 mL). Methylamine in methanol (7.8 mL, 16 mmol, 2M) was then added and stirred at room temperature for 3 hours. The yellow solution was concentrated, and then re-dissolved in ethyl acetate followed by washing with sodium bicarbonate and brine. The organic phase was dried over sodium sulfate, filtered, and concentrated. The yellow solid was then re-dissolved in ethanol and recrystallized to give 6-chloro-N-methyl-3-nitropyridin-2-amine (28-1) as a yellow solid. HRMS (M+H)+: observed=188.0216, calculated=188.0221.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09108937B2 |
| Source dataset | uspto-grants-2015_08 |
| ORD ID | ord-5226676b9fd348fbbb450437d684511c |
| Source note | uspto-grants-2015_08 |