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Tetrabutylammonium Fluoride → 5-Amino-1-(4-fluorophenyl)4-[3-(2-hydroxyethyl)benzoyl]pyrazole

HRID 843068
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HRID 843068 반응식
[NH2:1][C:2]1[N:6]([C:7]2[CH:12]=[CH:11][C:10]([F:13])=[CH:9][CH:8]=2)[N:5]=[CH:4][C:3]=1[C:14](=[O:31])[C:15]1[CH:20]=[CH:19][CH:18]=[C:17]([CH2:21][CH2:22][O:23][Si](C(C)(C)C)(C)C)[CH:16]=1.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1.[Cl-].[Na+].O>[NH2:1][C:2]1[N:6]([C:7]2[CH:12]=[CH:11][C:10]([F:13])=[CH:9][CH:8]=2)[N:5]=[CH:4][C:3]=1[C:14](=[O:31])[C:15]1[CH:20]=[CH:19][CH:18]=[C:17]([CH2:21][CH2:22][OH:23])[CH:16]=1
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참가 물질

5

반응물 2

HCID 2724141Tetrabutylammonium FluorideHCID 116045845-Amino-1-(4-fluorophenyl)-4-[3-(2-tert-butyldimethylsiloxyethyl)benzoyl]pyrazole

생성물 1

HCID 98402635-Amino-1-(4-fluorophenyl)4-[3-(2-hydroxyethyl)benzoyl]pyrazole수율 82%

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매HCID 57417360Sodium chloride; water
용매

실험 절차

To a solution of 5-amino-1-(4-fluorophenyl)-4-[3-(2-tert-butyldimethylsiloxyethyl)-benzoyl]pyrazole (1.2 g, 3.0 mmol) in tetrahydrofuran (25 ml) was added tetrabutylammonium fluoride (3.6 ml, 3.6 mmol, 1 M solution in tetrahydrofuran). After 1 h, the reaction mixture was poured into brine and the product was extracted into ethyl acetate. The organic layer was dried over sodium sulfate, filtered and concentrated in vacuo. The residue was purified by flash chromatography (elution gradient: 40-100% ethyl acetate/hexane) to give 5-amino-1-(4-fluorophenyl)-4-[3-(2-hydroxyethyl)benzoyl]pyrazole (0.8 g).

후처리

  1. extractionthe product was extracted into ethyl acetate
  2. dry with materialThe organic layer was dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash chromatography (elution gradient: 40-100% ethyl acetate/hexane)

출처 및 근거

ORD 기록
ord-a209561371f444bdb7156902c4040e74
출처 데이터셋
uspto-grants-2002_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06376527B1

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