1-[(4-Methoxy)phenyl]-3-(trifluoromethyl)-4-(ethoxycarbonyl)-5-(2-furyl)pyrazole → 1-[(4-Methoxy)phenyl]-3-(trifluoromethyl)-4-(ethoxycarbonyl)-pyrazole-5-carboxylic acid

HRID 610160노트

반응식

HRID 610160 반응식
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([N:9]2[C:13]([C:14]3[O:15]C=CC=3)=[C:12]([C:19]([O:21][CH2:22][CH3:23])=[O:20])[C:11]([C:24]([F:27])([F:26])[F:25])=[N:10]2)=[CH:5][CH:4]=1.C(Cl)(Cl)(Cl)Cl.C(#N)C.O.I([O-])(=O)(=O)=[O:38].[Na+]>O.[Ru](Cl)(Cl)Cl>[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([N:9]2[C:13]([C:14]([OH:15])=[O:38])=[C:12]([C:19]([O:21][CH2:22][CH3:23])=[O:20])[C:11]([C:24]([F:26])([F:25])[F:27])=[N:10]2)=[CH:5][CH:4]=1

참가 물질

5

반응물 3

HCID 179399581-[(4-Methoxy)phenyl]-3-(trifluoromethyl)-4-(ethoxycarbonyl)-5-(2-furyl)pyrazoleHCID 22592919water acetonitrile CCl4HCID 23667635Sodium periodate

생성물 1

HCID 179399451-[(4-Methoxy)phenyl]-3-(trifluoromethyl)-4-(ethoxycarbonyl)-pyrazole-5-carboxylic acid수율 53.1%

시약·촉매·용매 1

HCID 6093376Ruthenium trichloride hydrate촉매

실험 절차

To a solution of 1-[(4-methoxy)phenyl]-3-(trifluoromethyl)-4-(ethoxycarbonyl)-5-(2-furyl)pyrazole (1.0 g, 2.63 mmol) in 4:4:6 carbon tetrachloride/acetonitrile/water was added sodium periodate (2.5 g, 11.8 mmol) and ruthenium (III) chloride monohydrate (11 mg, 0.05 mmol). The resulting biphasic reaction was stirred vigorously at ambient temperature for 24 h. The reaction was quenched with 10% aq HCl and diluted with ethyl acetate. The organics were washed with brine, dried (MgSO4), filtered through a pad of Celite and concentrated. The residue was dissolved in 1:1 hexanes/ethyl acetate and extracted with sat'd aq Na2CO3 (2 times). The combined aqueous extracts were acidified and extracted with ethyl acetate. The ethyl acetate extracts were washed with brine, dried (MgSO4) and concentrated to afford 0.5 g (53%) of the title compound as a solid. LRMS (ES-): 357.0 (M-H)-.

후처리

  1. customThe resulting biphasic reaction
  2. customThe reaction was quenched with 10% aq HCl
  3. additiondiluted with ethyl acetate
  4. washThe organics were washed with brine
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered through a pad of Celite
  7. concentrationconcentrated
  8. dissolutionThe residue was dissolved in 1:1 hexanes/ethyl acetate
  9. extractionextracted with sat'd aq Na2CO3 (2 times)
  10. extractionextracted with ethyl acetate
  11. washThe ethyl acetate extracts were washed with brine
  12. dry with materialdried (MgSO4)
  13. concentrationconcentrated

출처 및 근거

ORD 기록
ord-8c3a8aaa50cc4baeb097c8532d52a78d
출처 데이터셋
uspto-grants-1999_12
특허 번호
US05998424

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