Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzyl Alcohol | HCID 244 | — |
| Reactant | Citric Acid | HCID 311 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | HCID 69138392 | HCID 69138392 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 69139299 | HCID 69139299 | 57% |
Reaction Steps
A 2.35 g (6.77 mmol) portion of ethyl 5,6,7,8-tetrafluoro-1-[(1R,2S)-2-fluorocyclopropyl]-1,4-dihydro-4-oxoquinoline-3-carboxylate was dissolved in 20 ml of toluene and mixed with 0.70 ml (6.77 mmol) of benzyl alcohol. After cooling to 0° C., this was further mixed with 280 mg (6.99 mmol) of 60% sodium hydride which has been suspended in 10 ml of toluene, and the mixture was stirred at the same temperature for 2 hours and then at room temperature for 2 hours. After completion of the reaction, the reaction solution was mixed with 10% citric acid and extracted with chloroform (100 ml×2). The organic layer was dried over anhydrous sodium sulfate and the solvent was evaporated. The resulting residue was purified by a silica gel column chromatography (hexane:ethyl acetate=1:1) to yield 1.68 g (57%) of the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US05849757 |
|---|
| Source dataset | uspto-grants-1998_12 |
|---|
| ORD ID | ord-11f4600c2fd14c5887c9c109cf22f8f2 |
|---|
| Source note | uspto-grants-1998_12 |
|---|