Sodium Bicarbonate → 2,2-dimethyl-4-(3-fluorophenyl)-5-{4-(methylsulfonyl)phenyl}-3(2H)-furanone

HRID 2298268Notes

Reaction equation

HRID 2298268 reaction equation
Br[C:2]1[C:3](=[O:19])[C:4]([CH3:18])([CH3:17])[O:5][C:6]=1[C:7]1[CH:12]=[CH:11][C:10]([S:13]([CH3:16])(=[O:15])=[O:14])=[CH:9][CH:8]=1.C(=O)(O)[O-].[Na+].[F:25][C:26]1[CH:27]=[C:28](B(O)O)[CH:29]=[CH:30][CH:31]=1>C1(C)C=CC=CC=1.C(O)C.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>[CH3:17][C:4]1([CH3:18])[C:3](=[O:19])[C:2]([C:30]2[CH:29]=[CH:28][CH:27]=[C:26]([F:25])[CH:31]=2)=[C:6]([C:7]2[CH:12]=[CH:11][C:10]([S:13]([CH3:16])(=[O:15])=[O:14])=[CH:9][CH:8]=2)[O:5]1

Participants

7

Reactant 3

HCID 516892Sodium BicarbonateHCID 27339863-Fluorophenylboronic acidHCID 183857274-Bromo-2,2-dimethyl-5-[4-(methylsulfonyl)phenyl]-3(2h)-furanone

Product 1

HCID 99507622,2-dimethyl-4-(3-fluorophenyl)-5-{4-(methylsulfonyl)phenyl}-3(2H)-furanoneYield 67.6%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 1140TolueneSolvent

Conditions

Temperature
90 °C

Procedure

To a stirred solution of 4-bromo-2,2-dimethyl-5-{4-(methylsulfonyl)phenyl}-3(2H)-furanone (170 mg) in 30 ml toluene and 10 ml ethanol, were added 25 mg of tetrakis(triphenylphosphine)palladium(0), 10 ml of saturated aqueous sodium bicarbonate, and 100 mg of 3-fluorobenzeneboronic acid. The reaction solution was stirred at 90° C. for 12 hours. Then the solvent was removed under reduced pressure. The resulting residue was extracted with water and dichloromethane. The organic layer was concentrated in vacuo and the resulting residue was separated by column chromatography (hexane/ethylacetate) to yield 120 mg of 2,2-dimethyl-4-(3-fluorophenyl)-5-{4-(methylsulfonyl)phenyl}-3(2H)-furanone as a solid. mp: 178-179° C. NMR: δ1.58 (s, 6H), 3.08 (s, 3H), 7.05 (m, 3H), 7.33 (m, 1H), 7.83 (d, J=8.7 Hz, 2H), 7.95 (d, J=8.4 Hz, 2H). IR (cm−1): 3020, 1697, 1620, 1403, 1318, 1149, 958, 768. MS (FAB): 361 (m+1).

Workup

  1. customThen the solvent was removed under reduced pressure
  2. extractionThe resulting residue was extracted with water and dichloromethane
  3. concentrationThe organic layer was concentrated in vacuo
  4. customthe resulting residue was separated by column chromatography (hexane/ethylacetate)

Sources & evidence

ORD record
ord-0e85534ac5524642ace9f59c4c2ae47d
Source dataset
uspto-grants-2002_12
Patent number
US06492416B1

Reaction notes

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