Imidazole → 4-(t-Butyldimethylsilyloxy)indole

HRID 20992

반응식

HRID 20992 반응식
[OH:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]=[CH:5][NH:6]2.N1C=CN=C1.[Si:16](Cl)([C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:18])[CH3:17].O>CN(C=O)C>[Si:16]([O:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]=[CH:5][NH:6]2)([C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:18])[CH3:17]

참가 물질

6

반응물 4

HCID 795ImidazoleHCID 962WaterHCID 28928tert-Butyldimethylsilyl chlorideHCID 754211H-indol-4-ol

생성물 1

HCID 115939764-(t-Butyldimethylsilyloxy)indole수율 99.1%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

4-Hydroxyindole (831 mg, 6.24 mmol) was dissolved in DMF (8.0 mL), and the solution was added with imidazole (510 mg, 7.49 mmol) and tert-butyldimethylsilyl chloride (1.03 g, 6.86 mmol), followed by stirring at room temperature for 5 hours. The reaction mixture was added with water and extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by flash column chromatography (hexane/ethyl acetate=85/15) to obtain 4-(tert-butyldimethylsilyloxy)indole (1.53 g, 99%).

후처리

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by flash column chromatography (hexane/ethyl acetate=85/15)

출처 및 근거

ORD 기록
ord-6b686c8998cf48d1a573e9b347303062
출처 데이터셋
uspto-grants-2010_06
특허 번호
US07745641B2

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