Lithium Hydroxide → 2-(3,3-Bis(4-fluorophenyl)-2-oxopiperidin-1-yl)acetic acid

HRID 2408845

Reaction equation

HRID 2408845 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([C:21]3[CH:26]=[CH:25][C:24]([F:27])=[CH:23][CH:22]=3)[CH2:13][CH2:12][CH2:11][N:10]([CH2:14][C:15]([O:17]CC)=[O:16])[C:9]2=[O:20])=[CH:4][CH:3]=1.[OH-].[Li+]>C(O)C.O>[F:27][C:24]1[CH:23]=[CH:22][C:21]([C:8]2([C:5]3[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=3)[CH2:13][CH2:12][CH2:11][N:10]([CH2:14][C:15]([OH:17])=[O:16])[C:9]2=[O:20])=[CH:26][CH:25]=1

Participants

5

Reactant 2

HCID 3939Lithium HydroxideHCID 67359841Ethyl 2-(3,3-bis(4-fluorophenyl)-2-oxopiperidin-1-yl)acetate

Product 1

HCID 673591112-(3,3-Bis(4-fluorophenyl)-2-oxopiperidin-1-yl)acetic acid

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 962WaterSolvent

Conditions

Temperature
80 °C

Procedure

The product from Example 23C (0.40 g, 1.07 mmol) was dissolved in ethanol (20 mL). A solution of lithium hydroxide (0.21 g, 8.57 mmol) in water (5 mL) was added and the reaction was heated to 80° C. for 2 hours. The reaction mixture was cooled to room temperature, concentrated, neutralized with 2 N HCl, and then diluted with ethyl acetate. The organic layer was washed with water and brine, dried over magnesium sulfate, filtered, and then concentrated to give the title compound. MS (DCI) m/z 346 (M+H)+.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. concentrationconcentrated
  3. additiondiluted with ethyl acetate
  4. washThe organic layer was washed with water and brine
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-0a758e08c99c48d68114fbce1d1d197d
Source dataset
uspto-grants-2014_08
Patent number
US08815869B2

Linked notes

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