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

HRID 1528369Notes

Reaction equation

HRID 1528369 reaction equation
[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

Participants

5

Reactant 2

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

Product 1

HCID 66678484(S)-5-(4-Chlorophenyl)-6-(1,1,1-trifluoropropan-2-yloxy)nicotinic acidYield 100.4%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

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)−.

Workup

  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

Sources & evidence

ORD record
ord-d26daecee196484883fb1e6e577e3bea
Source dataset
uspto-grants-2015_07
Patent number
US09090599B2

Reaction notes

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