Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Toluene | HCID 1140 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Diisobutylaluminumhydride | HCID 21225700 | — |
| Reactant | HCID 70873472 | HCID 70873472 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 86709384 | HCID 86709384 | 94.2% |
Reaction Steps
6-(4-Trifluoromethoxyphenoxy)nicotinic acid ethyl ester (7.48 g, 22.9 mmol) was dissolved in tetrahydrofuran (75 ml) and cooled to −78° C. A toluene solution (100.6 ml, 100.6 mmol) of diisobutylaluminium hydride was added thereto and the mixture was stirred at the same temperature for 1 hour. The reaction mixture was poured into a 1 N sodium hydroxide aqueous solution, followed by extraction with dichloromethane. The organic layer was washed with a saturated sodium chloride aqueous solution and dried over magnesium sulfate. The organic layer was concentrated and purified by silica gel column chromatography (hexane:ethyl acetate=100:0→0:100) to afford the title compound as a colorless oil (6.15 g, 94%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09051333B2 |
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| Source dataset | uspto-grants-2015_06 |
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| ORD ID | ord-c0b8da3ee5484a45802960f50aace675 |
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| Source note | uspto-grants-2015_06 |
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