Hydrochloric Acid → 2-(2-oxo-6-(trifluoromethyl)quinolin-1(2H)-yl)acetic acid

HRID 2098132Notes

Reaction equation

HRID 2098132 reaction equation
[O:1]=[C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([C:12]([F:15])([F:14])[F:13])[CH:8]=2)[N:3]1[CH2:16][C:17]([O:19]C)=[O:18].O[Li].O.Cl>C1COCC1.O>[O:1]=[C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([C:12]([F:14])([F:13])[F:15])[CH:8]=2)[N:3]1[CH2:16][C:17]([OH:19])=[O:18]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 168937Lithium hydroxide, monohydrateHCID 68784830methyl 2-(2-oxo-6-(trifluoromethyl)quinolin-1(2H)-yl)acetate

Product 1

HCID 687598572-(2-oxo-6-(trifluoromethyl)quinolin-1(2H)-yl)acetic acidYield 94.4%

Reagents, catalysts & solvents 1

HCID 21881883Oxolane--water (1/1)Solvent

Procedure

To a stirring solution of methyl 2-(2-oxo-6-(trifluoromethyl)quinolin-1(2H)-yl)acetate (4.8 g, 16.8 mmol) in THF/water (25 mL/5 mL, 5:1) was added LiOH.H2O (3.52 g, 84.2 mmol). The resulting mixture was stirred overnight. The crude mixture was slowly acidified with 1N HCl and then extracted with EtOAc. The organic phase was dried (MgSO4), filtered and concentrated under vacuum to give 2-(2-oxo-6-(trifluoromethyl)quinolin-1(2H)-yl)acetic acid (4.3 g). Retention time (min)=3.005, method [7], MS (ESI) 272.1 (M+H).

Workup

  1. extractionextracted with EtOAc
  2. dry with materialThe organic phase was dried (MgSO4)
  3. filtrationfiltered
  4. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-bbfad08c236f4237b84f060bfd415291
Source dataset
uspto-grants-2013_05
Patent number
US08450363B2

Reaction notes

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