HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 3,4-Dimethoxy-2-methyl-1-oxo-1lambda~5~-pyridine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Methanol | HCID 887 | — |
| Reactant | Sodium Methoxide | HCID 10942334 | — |
| Reactant | 2-methyl-3-fluoro-4-nitropyridine-N-oxide | HCID 19791169 | — |
| Product | 3,4-Dimethoxy-2-methyl-1-oxo-1lambda~5~-pyridine | HCID 10749647 | — |
Reaction Steps
A solution of sodium methoxide (from 0.535 g sodium) in dry methanol (40 ml) was added dropwise to a stirred suspension of 3-fluoro-2-methyl-4-nitropyridine N-oxide (2 g) in dry methanol (50 ml) and the mixture was stirred overnight. Additional sodium methoxide (from 0.053 g sodium) was added and the mixture was heated under reflux for 1 hour. The mixture was neutralised with hydrochloric acid and evaporated to dryness. The residue was extracted with chloroform and the extract was evaporated to dryness to give 3,4-dimethoxy-2-methylpyridine N-oxide.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04523015 |
| Source dataset | uspto-grants-1985_06 |
| ORD ID | ord-25325235f06e4b18938c325161a6131e |
| Source note | uspto-grants-1985_06 |