HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Acid → Ethyl 3-Oxo-3-phenyl-2-(pyridin-3-yl)propanoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Benzoyl chloride | HCID 7412 | — |
| Reactant | Ethyl 3-pyridylacetate | HCID 96490 | — |
| Reactant | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | Ethyl 3-Oxo-3-phenyl-2-(pyridin-3-yl)propanoate | HCID 67422224 | 55.8% |
Reaction Steps
To a cooled solution (−78° C.) of ethyl 2-(pyridin-3-yl)acetate (1.842 mL, 12.11 mmol) in THF (12.2 mL) was added LiHMDS (12.11 mL, 12.11 mmol) and the mixture was stirred 15 min. A solution of benzoyl chloride (1.474 mL, 12.71 mmol) in THF (24.4 mL) was added slowly and the mixture was warmed to room temperature and stirred for 12 h. The reaction was quenched with AcOH (1.386 mL, 24.21 mmol), diluted with H2O (50 mL), and extracted with EtOAc (3×75 mL). The combined extracts were washed with brine, dried over MgSO4 and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a clear oil (1.82 g). LCMS m/z=270.2 [M+H]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08940891B2 |
| Source dataset | uspto-grants-2015_01 |
| ORD ID | ord-3ecaada707dd48c29155950d3a588c7c |
| Source note | uspto-grants-2015_01 |