HuagongsheHuagongshe Chemistry Print Report · For research reference only
Triethylamine → 6-Methoxy-2-pyridinecarbonitrile
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Trifluoroacetic anhydride | HCID 9845 | — |
| Reactant | 6-Methoxypyridine-2-carboxamide | HCID 20184983 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 6-Methoxy-2-pyridinecarbonitrile | HCID 13023644 | 95% |
Reaction Steps
To an ice cold solution of 6-methoxy-pyridine-2-carboxylic acid amide (300 mg, 1.97 mmol) in THF (3 mL) were added triethylamine (1.25 mL, 8.68 mmol) and dropwise added TFAA (0.61 mL, 4.34 mmol). The reaction mixture was allowed to warm to room temperature and stirred overnight. The volatiles were concentrated in vacuo and the liquid residue was added dropwise to a vigorously stirred, ice cold, pH 7 phosphate buffer solution (5 mL). After 15 min of further stirring the yellowish solid was filtered and air dried for 1 h to yield 250 mg (95%) of 6-methoxy-pyridine-2-carbonitrile as yellowish solid, m/z 135.4 [M+1]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08552205B2 |
| Source dataset | uspto-grants-2013_10 |
| ORD ID | ord-1163420d0764436bbedaf7dba524e5f4 |
| Source note | uspto-grants-2013_10 |