Iodoethane → 1-Ethyl-4-(4-fluoro-phenyl)-3-(4-methanesulfonyl-phenyl)-5-trifluoromethyl-1H-pyrazole

HRID 1292224노트

반응식

HRID 1292224 반응식
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([C:17]3[CH:22]=[CH:21][C:20]([S:23]([CH3:26])(=[O:25])=[O:24])=[CH:19][CH:18]=3)=[N:10][NH:11][C:12]=2[C:13]([F:16])([F:15])[F:14])=[CH:4][CH:3]=1.[CH2:27](I)[CH3:28].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O.C(OCC)(=O)C>[CH2:27]([N:11]1[C:12]([C:13]([F:16])([F:14])[F:15])=[C:8]([C:5]2[CH:6]=[CH:7][C:2]([F:1])=[CH:3][CH:4]=2)[C:9]([C:17]2[CH:22]=[CH:21][C:20]([S:23]([CH3:26])(=[O:24])=[O:25])=[CH:19][CH:18]=2)=[N:10]1)[CH3:28]

참가 물질

6

반응물 3

HCID 6340IodoethaneHCID 11430Potassium CarbonateHCID 153802224-(4-Fluoro-phenyl)-3-(4-methanesulfonyl-phenyl)-5-trifluoromethyl-1H-pyrazole

생성물 1

HCID 98445471-Ethyl-4-(4-fluoro-phenyl)-3-(4-methanesulfonyl-phenyl)-5-trifluoromethyl-1H-pyrazole

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

4-(4-Fluorophenyl)-3-[4-(methylsulfonyl)phenyl]-5-(trifluoromethyl)-1H-pyrazole (1.81 g, 4.3 mmol) and ethyl iodide (0.86 g, 5.5 mmol) were stirred vigorously in 20 mL dry dimethylformamide (DMF) with finely powdered potassium carbonate (0.58 g, 4.2 mmol) under nitrogen at 25° C. for 18 hours. The mixture was diluted with ethyl acetate and filtered to remove solids. The organic filtrate was washed with two portions of water followed by brine, dried over MgSO4 and concentrated in vacuo. The desired 1-ethyl-4-(4-fluorophenyl)-3-[4-(methylsulfonyl)phenyl]-5-(trifluoromethyl)-1H-pyrazole was isolated by chromatography on silica gel using 10% ethyl acetate/90% toluene as the eluant, giving 0.65 g (69%) of a white solid: mp 133°-135.5° C.

후처리

  1. filtrationfiltered
  2. customto remove solids
  3. washThe organic filtrate was washed with two portions of water
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-bf79c32978534c71af2445f7632bf643
출처 데이터셋
uspto-grants-1998_05
특허 번호
US05756530

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