m-Chloroperbenzoic acid → 4-(3-fluorophenyl)-2,2-dimethyl-5-(4-(methylsulfinyl)phenyl)furan-3(2H)-one

HRID 2298317Notes

Reaction equation

HRID 2298317 reaction equation
[CH3:1][C:2]1([CH3:23])[C:6](=[O:7])[C:5]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([F:14])[CH:9]=2)=[C:4]([C:15]2[CH:20]=[CH:19][C:18]([S:21][CH3:22])=[CH:17][CH:16]=2)[O:3]1.ClC1C=C(C=CC=1)C(OO)=[O:29].C(=O)(O)[O-].[Na+]>ClCCl>[CH3:1][C:2]1([CH3:23])[C:6](=[O:7])[C:5]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([F:14])[CH:9]=2)=[C:4]([C:15]2[CH:20]=[CH:19][C:18]([S:21]([CH3:22])=[O:29])=[CH:17][CH:16]=2)[O:3]1

Participants

5

Reactant 3

HCID 70297m-Chloroperbenzoic acidHCID 516892Sodium BicarbonateHCID 183855844-(3-Fluorophenyl)-2,2-dimethyl-5-(4-(methylthio)phenyl)furan-3(2H)-one

Product 1

HCID 183857244-(3-fluorophenyl)-2,2-dimethyl-5-(4-(methylsulfinyl)phenyl)furan-3(2H)-oneYield 62%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a stirred solution of 2,2-dimethyl-4-(3-fluorophenyl)-5-{4-(methylthio)phenyl}-3(2H)-furanone (2.0 g, Example 166) in 50 ml dichloromethane, was added 1.5 g of m-chloroperoxybenzoic acid at 0° C. The reaction solution was stirred at the same temperature for one and half hours, after which 30 ml 5% aqueous sodium bicarbonate was added and the solution was stirred for another 10 minutes. Then the reaction mixture was concentrated in vacuo, and the resulting residue was extracted with 50 ml water and dichloromethane (30 ml×3). The organic layer was concentrated in vacuo and was purified by column chromatography (hexane/ethylacetate=1:1) to give 1.3 g of 2,2-dimethyl-4-(3-fluorophenyl)-5-{4-(methylsulfinyl)phenyl}-3(2H)-furanone. mp: 143-144° C. NMR: δ1.58 (s, 6H), 2.76(s, 3H), 7.26-7.08 (m, 3H), 7.30-7.38 (m, 1H), 7.65 (d, J=8.2 Hz, 2H), 7.80 (d, J=8.2 Hz, 2H).

Workup

  1. stirringthe solution was stirred for another 10 minutes
  2. concentrationThen the reaction mixture was concentrated in vacuo
  3. extractionthe resulting residue was extracted with 50 ml water and dichloromethane (30 ml×3)
  4. concentrationThe organic layer was concentrated in vacuo
  5. customwas purified by column chromatography (hexane/ethylacetate=1:1)

Sources & evidence

ORD record
ord-44e221cb971b43b89b8c75788e542981
Source dataset
uspto-grants-2002_12
Patent number
US06492416B1

Reaction notes

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