HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl 4-amino-6-chloronicotinate → (4-Amino-6-chloropyridin-3-yl)methanol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl 4-amino-6-chloronicotinate | HCID 824642 | — |
| Reactant | Aluminium lithium hydride | HCID 21226445 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | (4-Amino-6-chloropyridin-3-yl)methanol | HCID 21073390 | 84.1% |
Reaction Steps
Treat a 0° C. suspension of lithium aluminum hydride (5.7 g, 150 mmol) in THF (150 mL), under N2, drop-wise with a solution of ethyl 4-amino-6-chloronicotinate (15 g, 75 mmol) in THF (50 mL), allow to warm to RT and stir for 3 h. Quench the mixture with 10% NaOH (5.7 mL), then water (5.7 mL), filter to remove solids, add water to the filtrate and extract with EtOAc (3×). Wash the combined organics with brine, dry and concentrate to give the title compound (10 g, 84%). 1H NMR (300 MHz, DMSO-d6): δ 7.79 (s, 1H), 6.53 (s, 1H), 6.17 (s, 2H), 5.10 (t, J=5.4 Hz, 1H), 4.36 (d, J=5.4 Hz, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09187474B2 |
| Source dataset | uspto-grants-2015_11 |
| ORD ID | ord-08ef457fe8a249bf951de211617cd37a |
| Source note | uspto-grants-2015_11 |