Hydrochloric Acid → 4,4,4-Trifluoro-1-[4-(2-furyl)-3-methylphenyl]butane-1,3-dione

HRID 396739Notes

Reaction equation

HRID 396739 reaction equation
[F:1][C:2]([F:9])([F:8])[C:3]([O:5]CC)=O.C[O-].[Na+].[O:13]1[CH:17]=[CH:16][CH:15]=[C:14]1[C:18]1[CH:23]=[CH:22][C:21]([C:24](=[O:26])[CH3:25])=[CH:20][C:19]=1[CH3:27].Cl>C(OC)(C)(C)C>[F:9][C:2]([F:1])([F:8])[C:3](=[O:5])[CH2:25][C:24]([C:21]1[CH:22]=[CH:23][C:18]([C:14]2[O:13][CH:17]=[CH:16][CH:15]=2)=[C:19]([CH3:27])[CH:20]=1)=[O:26]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 9794Ethyl trifluoroacetateHCID 10942334Sodium MethoxideHCID 223166331-[4-(2-Furyl)-3-methylphenyl]ethanone

Product 1

HCID 223167484,4,4-Trifluoro-1-[4-(2-furyl)-3-methylphenyl]butane-1,3-dione

Reagents, catalysts & solvents 1

HCID 15413tert-Butyl methyl etherSolvent2×

Procedure

To a stirred soluition of ethyl trifluoroacetate (0.66 g, 4.67 mmol) in t-butylmethylether (15 mL) was added sodium methoxide (28 wt. % solution in methanol; 1.2 mL, 4.98 mmol) over 2 min. A solution of 1-[4-(2-furyl)-3-methylphenyl]ethanone in t-butylmethylether (4 mL) was added dropwise over 5 minutes, and the mixture was stirred for 20 hours. 2N HCl (10 mL) was added, and the whole was extracted with ethyl acetate. The organic layer was washed with brine, dried over MgSO4, and concentrated in vacuo to give 1.12 g of brown oil. The compound was used for next reaction without purification.

Workup

  1. extractionthe whole was extracted with ethyl acetate
  2. washThe organic layer was washed with brine
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-5c034af44b434ae4a9ade7341d3e4777
Source dataset
uspto-grants-2003_08
Patent number
US06608095B2

Reaction notes

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