HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium hydride → HCID 57833537, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Ethyl 4-nitrophenylacetate | HCID 79517 | — |
| Reactant | 4-Fluoro-2-(trifluoromethyl)pyridine | HCID 44891496 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 57833537 | HCID 57833537 | 41.4% |
Reaction Steps
To a solution of ethyl (4-nitrophenyl)acetate (760 mg, 3.6 mmol) in DMF (10 mL) was added 60% sodium hydride (145 mg, 3.6 mmol). The deep purple reaction mixture was stirred at rt for 30 min, then 4-fluoro-2-trifluoromethyl-pyridine (500 mg, 3.0 mmol) was added. After heating at 70° C. for 2 h, the mixture was poured onto ice water and extracted with ethyl acetate. The organic layers were washed with water and brine, then dried over sodium sulfate and concentrated in vacuo. The residue was purified by column chromatography, eluting with 10-30% ethyl acetate in hexanes, to give (4-nitro-phenyl)-(2-trifluoromethyl-pyridin-4-yl)-acetic acid ethyl ester as a viscous yellow oil (440 mg, 41%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07582646B2 |
| Source dataset | uspto-grants-2009_09 |
| ORD ID | ord-1cc9eb280fe341a387a54bf0ba154636 |
| Source note | uspto-grants-2009_09 |