HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → 1004294-54-5
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | N-(6-chloro-5-ethylpyridin-2-yl)pivalamide | HCID 59272532 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Product | 1004294-54-5 | HCID 59165985 | 86.1% |
Reaction Steps
A suspension of N-(6-chloro-5-ethylpyridin-2-yl)pivalamide (1.16 g, 4.82 mmol) in 6N HCl (20 mL) was heated at reflux overnight. The reaction mixture was cooled to room temperature and was treated with aqueous NaOH to pH 8. The aqueous layer was extracted with EtOAc. The organic layer was dried over MgSO4 and the solvent was evaporated in vacuo. The residue was purified by chromatography on silica gel (5% EtOAc in petroleum ether) to afford 6-chloro-5-ethylpyridin-2-amine (650 mg, 86%). 1H NMR (CDCl3, 400 MHz) δ 7.35 (d, J=8.4, 1H), 6.45 (d, J=8.4, 1H), 2.61 (q, J=7.6, 2H), 1.18 (t, J=7.6, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08969386B2 |
| Source dataset | uspto-grants-2015_03 |
| ORD ID | ord-87b25ce440f242688a3d593b421b0bad |
| Source note | uspto-grants-2015_03 |