HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl Acetate → 3-Fluoro-2-(hydroxymethyl)-5-(methylsulfonyl)phenol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Lithium borohydride | HCID 4148881 | — |
| Reactant | Methyl 2-fluoro-6-hydroxy-4-(methylsulfonyl)benzoate | HCID 66887484 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 3-Fluoro-2-(hydroxymethyl)-5-(methylsulfonyl)phenol | HCID 66887516 | 95.6% |
Reaction Steps
Methyl 2-fluoro-6-hydroxy-4-(methylsulfonyl)benzoate (0.14 g, 0.57 mmol) was dissolved in THF (dry) (5 ml). LiBH4 (2M in THF) (0.57 ml, 1.14 mmol) was added dropwise under nitrogen at 0° C. The mixture was allowed to warm to RT and stirred under nitrogen for 45 min. EtOAc was added and the mixture was further quenched with MeOH, then water. The mixture was acidified with 1N HCl and extracted with EtOAc. The combined extracts were washed with brine, dried (Na2SO4) and concentrated to give the crude title compound (0.12 g) 1H-NMR (400 MHz, CD3OD): δ 7.20 (1H, s), 7.16 (1H, dd, J 8.4, 2), δ 4.73 (2H, d, J 1.6), δ 3.10 (3H, s) ppm (J-values are in Hz and shifts relative to solvent-peak at 3.31 ppm).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08492372B2 |
| Source dataset | uspto-grants-2013_07 |
| ORD ID | ord-6ee9932b9cff4c48ae2eea209764fc2e |
| Source note | uspto-grants-2013_07 |