Potassium Carbonate → Methyl 2-(5,5-dimethyl-1-cyclopenten-1-yl)-5'-(ethyloxy)-2'-fluoro-1,1'-biphenyl-4-carboxylate

HRID 404360

Reaction equation

HRID 404360 reaction equation
[CH3:1][C:2]1([CH3:25])[C:6]([C:7]2[CH:8]=[C:9]([CH:14]=[CH:15][C:16]=2OS(C(F)(F)F)(=O)=O)[C:10]([O:12][CH3:13])=[O:11])=[CH:5][CH2:4][CH2:3]1.[CH2:26]([O:28][C:29]1[CH:30]=[CH:31][C:32]([F:38])=[C:33](B(O)O)[CH:34]=1)[CH3:27].C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.[Cl-].[Na+].O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:1][C:2]1([CH3:25])[C:6]([C:7]2[CH:8]=[C:9]([C:10]([O:12][CH3:13])=[O:11])[CH:14]=[CH:15][C:16]=2[C:33]2[CH:34]=[C:29]([O:28][CH2:26][CH3:27])[CH:30]=[CH:31][C:32]=2[F:38])=[CH:5][CH2:4][CH2:3]1

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 162174685-Ethoxy-2-fluorophenylboronic Acid (contains varying amounts of Anhydride)HCID 57467618Methyl 3-(5,5-dimethylcyclopent-1-enyl)-4-(trifluoromethylsulfonyloxy)benzoate

Product 1

HCID 57705826Methyl 2-(5,5-dimethyl-1-cyclopenten-1-yl)-5'-(ethyloxy)-2'-fluoro-1,1'-biphenyl-4-carboxylateYield 90%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolventHCID 57417360Sodium chloride; waterSolvent

Conditions

Temperature
90 °C

Procedure

To a stirred solution of methyl 3-(5,5-dimethylcyclopent-1-enyl)-4-(trifluoromethylsulfonyloxy)benzoate T3.5 (0.400 g, 1.1 mmol) in DMF (4.00 mL) at 23° C. was added 5-ethoxy-2-fluorophenylboronic acid (0.29 g, 1.6 mmol, commercially available from Sigma-Aldrich, St. Louis, Mo., USA), potassium carbonate (0.44 g, 3.2 mmol), and then tetrakis(triphenylphosphine)palladium (0.12 g, 0.11 mmol). The mixture was heated to 90° C. and stirred for 21 hours. The mixture was then cooled to room temperature, diluted with brine, and extracted three times with EtOAc. After drying over anhydrous magnesium sulfate and filtering, the organic solvent was removed under reduced pressure and the product was then purified on silica gel (0-10% EtOAc in hexanes) to yield T25.1 as a colorless oil (0.350 g, 90% yield).

Workup

  1. temperatureThe mixture was then cooled to room temperature
  2. extractionextracted three times with EtOAc
  3. dry with materialAfter drying over anhydrous magnesium sulfate
  4. filtrationfiltering
  5. customthe organic solvent was removed under reduced pressure
  6. customthe product was then purified on silica gel (0-10% EtOAc in hexanes)

Sources & evidence

ORD record
ord-60c23cb0cbfc4cc4bbc8fb5cba67ffe7
Source dataset
uspto-grants-2014_06
Patent number
US08748462B2

Linked notes

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