Sodium Carbonate → HCID 86654784, compound

HRID 2363203Notes

Reaction equation

HRID 2363203 reaction equation
Br[C:2]1[O:6][C:5]([C:7]([O:9][CH2:10][CH3:11])=[O:8])=[CH:4][CH:3]=1.[F:12][C:13]([F:28])([F:27])[C:14]1[CH:15]=[C:16](B(O)O)[CH:17]=[C:18]([C:20]([F:23])([F:22])[F:21])[CH:19]=1.C([O-])([O-])=O.[Na+].[Na+]>C1C=CC=CC=1.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>[F:12][C:13]([F:27])([F:28])[C:14]1[CH:15]=[C:16]([C:2]2[O:6][C:5]([C:7]([O:9][CH2:10][CH3:11])=[O:8])=[CH:4][CH:3]=2)[CH:17]=[C:18]([C:20]([F:21])([F:22])[F:23])[CH:19]=1

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 1562653,5-Bis-trifluoromethylphenylboronic acidHCID 345282Ethyl 5-bromofuran-2-carboxylate

Product 1

HCID 86654784HCID 86654784, compoundYield 38%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 241BenzeneSolventHCID 962WaterSolvent

Procedure

To a solution of ethyl 5-bromofuran-2-carboxylate (100 mg, 0.46 mmol) in benzene (5 mL) were added 3,5-bis(trifluoromethyl)phenylboronic acid (141 mg, 0.55 mmol), 2M Na2CO3 (6860, 1.37 mmol), and catalytic amounts of Pd(PPh3)4 (106 mg, 0.09 mmol). The reaction mixture was refluxed for 6 hrs, diluted with water and extracted with EtOAc. The extracts were washed with brine, dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure. The crude residue was purified by column chromatography on silica gel (EtOAc/n-Hex=1:5) to give title compound (61 mg, 38%).

Workup

  1. temperatureThe reaction mixture was refluxed for 6 hrs
  2. extractionextracted with EtOAc
  3. washThe extracts were washed with brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe crude residue was purified by column chromatography on silica gel (EtOAc/n-Hex=1:5)

Sources & evidence

ORD record
ord-9f3c7c7059c444d6884f47d375d5d55e
Source dataset
uspto-grants-2014_04
Patent number
US08691855B2

Reaction notes

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