Hydrochloric Acid → 4,4,4-Trifluoro-1-(3-fluoro-4-(1,3-thiazol-4-yl)phenyl)-1,3-butanedione

HRID 965986Notes

Reaction equation

HRID 965986 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([C:13](=[O:15])[CH3:14])[CH:5]=[CH:6][C:7]=1[C:8]1[N:9]=[CH:10][S:11][CH:12]=1.[F:16][C:17]([F:24])([F:23])[C:18](OCC)=[O:19].C[O-].[Na+].Cl>C(OC)(C)(C)C>[F:16][C:17]([F:24])([F:23])[C:18](=[O:19])[CH2:14][C:13]([C:4]1[CH:5]=[CH:6][C:7]([C:8]2[N:9]=[CH:10][S:11][CH:12]=2)=[C:2]([F:1])[CH:3]=1)=[O:15]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 9794Ethyl trifluoroacetateHCID 10942334Sodium MethoxideHCID 223138303-Fluoro-4-(1,3-thiazol-4-yl)phenyl-1-ethanone

Product 1

HCID 223138014,4,4-Trifluoro-1-(3-fluoro-4-(1,3-thiazol-4-yl)phenyl)-1,3-butanedioneYield 99%

Reagents, catalysts & solvents 1

HCID 15413tert-Butyl methyl etherSolvent

Procedure

To a stirred solution of 1-[3-fluoro-4-(1,3-thiazol-4-yl)phenyl]-1-ethanone (666 mg, 3.01 mmol), ethyl trifluoroacetate (470 mg, 3.31 mmol) in t-butylmethylether (40 ml) was added sodium methoxide (28 wt. % solution in methanol; 0.8 ml, 3.6 mmol) over 5 minutes, and the mixture was stirred for. 20 hours. The mixture was made neutral by addition of 2N HCl, and the whole was extracted with ethyl acetate. The organic layer was washed with brine, dried over MgSO4, and concentrated in vacuo. The residue was used for next reaction without further purification. (1.06 g, 99% yield).

Workup

  1. custom20 hours
  2. extractionthe whole was extracted with ethyl acetate
  3. washThe organic layer was washed with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customThe residue was used for next reaction without further purification

Sources & evidence

ORD record
ord-0b349d6e821a4354a190a0d69e13fe7a
Source dataset
uspto-grants-2005_10
Patent number
US06951876B2

Reaction notes

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