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Lithium Hydroxide → (S)-5-(4-Chlorophenyl)-6-(1,1,1-trifluoropropan-2-yloxy)nicotinic acid

HRID 1528369
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1528369
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([O:18][C@@H:19]([CH3:24])[C:20]([F:23])([F:22])[F:21])=[N:10][CH:11]=[C:12]([CH:17]=2)[C:13]([O:15]C)=[O:14])=[CH:4][CH:3]=1.[OH-].[Li+]>O1CCCC1.O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[C:9]([O:18][C@@H:19]([CH3:24])[C:20]([F:23])([F:21])[F:22])=[N:10][CH:11]=[C:12]([CH:17]=2)[C:13]([OH:15])=[O:14])=[CH:6][CH:7]=1
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Komponenten

5

Edukt 2

HCID 3939Lithium HydroxideHCID 66678826(S)-methyl 5-(4-chlorophenyl)-6-(1,1,1-trifluoropropan-2-yloxy)nicotinate

Produkt 1

HCID 66678484(S)-5-(4-Chlorophenyl)-6-(1,1,1-trifluoropropan-2-yloxy)nicotinic acidAusbeute 100,4 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 8028Tetrahydrofuran
Lösungsmittel

Versuchsvorschrift

To a solution of 0.860 g (S)-methyl 5-(4-chlorophenyl)-6-(1,1,1-trifluoropropan-2-yloxy)nicotinate in 9 mL tetrahydrofuran was added 3 mL of a 1M solution of lithium hydroxide in water and the mixture was stirred at room temperature overnight. The solvent was evaporated and the residue was acidified by addition of 1M hydrochloric acid till pH=2. Ethyl acetate was added and the phases were separated. The organic phase was dried over MgSO4 and the solvent was removed to yield 830 mg (100%) of the title compound as light yellow solid, MS 344.1 (M−H)−.

Aufarbeitung

  1. customThe solvent was evaporated
  2. additionthe residue was acidified by addition of 1M hydrochloric acid till pH=2
  3. additionEthyl acetate was added
  4. customthe phases were separated
  5. dry with materialThe organic phase was dried over MgSO4
  6. customthe solvent was removed

Quellen und Nachweise

ORD-Eintrag
ord-d26daecee196484883fb1e6e577e3bea
Quelldatensatz
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09090599B2

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