HuagongsheHuagongshe Chemistry Print Report · For research reference only
Picolinic acid → N-Methoxy-N-methylpicolinamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Picolinic acid | HCID 1018 | — |
| Reactant | 1,1'-Carbonyldiimidazole | HCID 68263 | — |
| Reactant | Methanamine, N-methoxy-, hydrochloride (1:1) | HCID 81138 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | N-Methoxy-N-methylpicolinamide | HCID 11829796 | — |
Reaction Steps
Picolinic acid (12.3 g, 100 mmol), N,N-carbonyldiimidazole (17.8 g, 110 mmol) and anhydrous CH2Cl2 (150 mL) were combined and stirred at room temperature for 60 minutes. To the reaction mixture was added a solution of N,O-dimethylhydroxylamine hydrochloride (10.7 gr, 0.11 mole), anhydrous CH2Cl2 (50 mL) and diisopropylethylamine (20 mL), and stirring continued overnight. The reaction mixture was concentrated in vacuo and purified by flash chromatography (silica gel 60, MeOH/CH2Cl2, 9:1) to afford pyridine-2-carboxylic acid methoxy-methyl-amide (a pale yellow liquid, 15.9 g, 95%); ESI) m/z 167.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07592363B2 |
| Source dataset | uspto-grants-2009_09 |
| ORD ID | ord-8d548103e341436fb98bfc99a4287d7c |
| Source note | uspto-grants-2009_09 |