Citric Acid → 3-(4-{[2'-methyl-4'-(tetrahydro-2H-pyran-2-yloxy)biphenyl-3-yl]methoxy}phenyl)propanoic acid

HRID 273394Notes

Reaction equation

HRID 273394 reaction equation
[CH3:1][C:2]1[CH:7]=[C:6]([O:8][CH:9]2[CH2:14][CH2:13][CH2:12][CH2:11][O:10]2)[CH:5]=[CH:4][C:3]=1[C:15]1[CH:20]=[CH:19][CH:18]=[C:17]([CH2:21][O:22][C:23]2[CH:28]=[CH:27][C:26]([CH2:29][CH2:30][C:31]([O:33]C)=[O:32])=[CH:25][CH:24]=2)[CH:16]=1.[OH-].[Na+].O.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>CO.O1CCCC1>[CH3:1][C:2]1[CH:7]=[C:6]([O:8][CH:9]2[CH2:14][CH2:13][CH2:12][CH2:11][O:10]2)[CH:5]=[CH:4][C:3]=1[C:15]1[CH:20]=[CH:19][CH:18]=[C:17]([CH2:21][O:22][C:23]2[CH:24]=[CH:25][C:26]([CH2:29][CH2:30][C:31]([OH:33])=[O:32])=[CH:27][CH:28]=2)[CH:16]=1

Participants

7

Reactant 4

HCID 311Citric AcidHCID 962WaterHCID 14798Sodium HydroxideHCID 58903213methyl 3-(4-{[2'-methyl-4'-(tetrahydro-2H-pyran-2-yloxy)biphenyl-3-yl]methoxy}phenyl)propanoate

Product 1

HCID 589032103-(4-{[2'-methyl-4'-(tetrahydro-2H-pyran-2-yloxy)biphenyl-3-yl]methoxy}phenyl)propanoic acidYield 75.1%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl 3-(4-{[2′-methyl-4′-(tetrahydro-2H-pyran-2-yloxy)biphenyl-3-yl]methoxy}phenyl)propanoate (0.599 g, 1.30 mmol) in methanol (6 mL) and tetrahydrofuran (6 mL) was added 2 M aqueous sodium hydroxide solution (2 mL) and the mixture was stirred at room temperature for 24 hrs. Water was added to the reaction mixture, and the mixture was neutralized with 10% aqueous citric acid solution and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was recrystallized from ethyl acetate-hexane to give the title compound (0.436 g, yield 75%) as colorless needle crystals.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was recrystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-6fd0f4d5a93f450cb9b7e48459b03c81
Source dataset
uspto-grants-2008_11
Patent number
US07456218B2

Reaction notes

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