HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methyl iodide → 2-Bromo-3-(1-methoxycyclobutyl)pyridine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 1-(2-Bromopyridin-3-yl)cyclobutanol | HCID 77230267 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 2-Bromo-3-(1-methoxycyclobutyl)pyridine | HCID 87332867 | 71% |
Reaction Steps
To a solution of the above alcohol (410 mg, 1.80 mmol) in DMF (5 mL) was added NaH (60%, 108 mg, 2.70 mmol). After 1 h, MeI (0.23 mL, 3.60 mmol) was added. After 1.5 h, the reaction mixture was filtered and the filtrate was concentrated to afford an orange oil. Purification by flash column chromatography using hexanes/EtOAc (2:1) afforded 2-bromo-3-(1-methoxy-cyclobutyl)-pyridine as a pale yellow solid (308 mg, 71%). 1H NMR (CDCl3) δ 1.61-1.71 (m, 1H), 2.04-2.14 (m, 1H), 2.56 (t, 4H, J=7.5 Hz), 2.96 (s, 3H), 7.25-7.30 (m, 1H), 7.64 (dd, 1H, J=7.5, 2.1 Hz), 8.31 (dd, 1H, J=4.7, 1.8 Hz).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07291631B2 |
| Source dataset | uspto-grants-2007_11 |
| ORD ID | ord-5220e9cfb4dd40638ce1169874126be2 |
| Source note | uspto-grants-2007_11 |