Ethanol → Ethyl 4-(5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazol-3-yl)-2-methylbenzoate

HRID 1844831Notes

Reaction equation

HRID 1844831 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH2:12][C:11]([C:17]3[CH:22]=[C:21]([Cl:23])[CH:20]=[C:19]([Cl:24])[CH:18]=3)([C:13]([F:16])([F:15])[F:14])[O:10][N:9]=2)=[CH:4][C:3]=1[CH3:25].[C:26]([O-:29])(=[O:28])C.[Na+].[C]=O.O.[CH2:34](O)[CH3:35]>C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2].C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH2:34]([O:29][C:26](=[O:28])[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH2:12][C:11]([C:17]3[CH:18]=[C:19]([Cl:24])[CH:20]=[C:21]([Cl:23])[CH:22]=3)([C:13]([F:16])([F:15])[F:14])[O:10][N:9]=2)=[CH:4][C:3]=1[CH3:25])[CH3:35]

Participants

8

Reactant 5

HCID 702EthanolHCID 962WaterHCID 517045Sodium AcetateHCID 231598123-(4-Bromo-3-methylphenyl)-5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazoleHCID 178418416HCID 178418416, compound

Product 1

HCID 59563490Ethyl 4-(5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazol-3-yl)-2-methylbenzoate

Reagents, catalysts & solvents 2

HCID 167845palladium(II) acetateCatalystHCID 635956Ferrocene-1,1'-bis-(diphenylphosphine)Catalyst

Procedure

In a solution of 15.0 g of 3-(4-bromo-3-methylphenyl)-5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisox azole in 60 ml of ethanol in an autoclave, 3.26 g of sodium acetate, 0.37 g of 1,1′-bis(diphenylphosphino) ferrocene and 0.08 g of palladium (II) acetate were added, and stirred under 2.0 MPa carbon monoxide atmosphere at 110° C. for 3 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, 200 ml of water was added and extracted with ethyl acetate (200 ml×2), the organic phase was washed with water, dehydrated with saturated sodium chloride aqueous solution and dried over anhydrous sodium sulfate and the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that was eluted with ethyl acetate-hexane (1:8) to obtain 10.8 g of the aimed product as colorless clear liquid.

Workup

  1. customAfter the completion of the reaction
  2. waitthe reaction mixture was left
  3. extractionextracted with ethyl acetate (200 ml×2)
  4. washthe organic phase was washed with water
  5. dry with materialdried over anhydrous sodium sulfate
  6. distillationthe solvent was distilled off under reduced pressure
  7. customThe residue was purified with silica gel column chromatography that
  8. washwas eluted with ethyl acetate-hexane (1:8)

Sources & evidence

ORD record
ord-d17c4c8faade4c05b687981cffbcb1d6
Source dataset
uspto-grants-2015_02
Patent number
US08946492B2

Reaction notes

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