HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → (R)-1-ethyl-2-[2-(3-fluorophenyl)ethyl]pyrrolidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Sodium Bisulfate | HCID 516919 | — |
| Reactant | Aluminium lithium hydride | HCID 21226445 | — |
| Reactant | 1-{(R)-2-[2-(3-fluorophenyl)ethyl]pyrrolidin-1-yl}ethanone | HCID 70983713 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | (R)-1-ethyl-2-[2-(3-fluorophenyl)ethyl]pyrrolidine | HCID 71007002 | 90.8% |
Reaction Steps
A solution of 1-{(R)-2-[2-(3-fluorophenyl)ethyl]pyrrolidin-1-yl}ethanone (Intermediate 232, 0.48 g) in THF (20 mL) was cooled to 0° C. and treated with a solution of lithium aluminum hydride (2M in THF, 3.6 mL) under an atmosphere of nitrogen. The resultant mixture was allowed to warm to room temperature before heating to 60° C. overnight. The mixture was cooled to 0° C. and treated with water (0.35 ml), 4N sodium hydroxide solution (0.35 ml) and further water (0.9 ml). Sodium bisulphate powder was added to the suspension and the slurry was filtered through Celite and the filtrate was evaporated to dryness to give (R)-1-ethyl-2-[2-(3-fluoro-phenyl)ethyl]pyrrolidine (0.41 g) as an oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09290472B2 |
| Source dataset | uspto-grants-2016_03 |
| ORD ID | ord-27b36a7653544f2b841fe4873afeded9 |
| Source note | uspto-grants-2016_03 |