HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → (βS)-β-Amino-3-fluoro-5-(fluoromethyl)benzeneethanol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 131734611 | HCID 131734611 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | (βS)-β-Amino-3-fluoro-5-(fluoromethyl)benzeneethanol | HCID 118045996 | 118.5% |
Reaction Steps
To a solution of (S)-tert-butyl (1-(3-fluoro-5-(fluoromethyl)phenyl)-2-hydroxyethyl)carbamate (220 mg, 0.766 mmol) in DCM (2.5 mL), HCl (4M in dioxane) (1.9 mL 7.66 mmol) was added at room temperature, the reaction mixture was stirred at room temperature for 1 h. The reaction mixture was then concentrated to dryness. The residue was recrystallized from DCM and heptane. The solid was filtered and air dry to yield (S)-2-amino-2-(3-fluoro-5-(fluoromethyl)phenyl)ethanol (145 mg, 0.908 mmol, 100% yield) HCl salt as white solid. LCMS (m/z): 188.2 (MH+), 0.32 min.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09242996B2 |
| Source dataset | uspto-grants-2016_01 |
| ORD ID | ord-1ab00ffc0a044f58a132d8cfd6ee8319 |
| Source note | uspto-grants-2016_01 |