Tetrabutylammonium Fluoride → 5-Chloro-3-phenyl-7-nitro-1H-indole

HRID 1802825노트

반응식

HRID 1802825 반응식
[Cl:1][C:2]1[CH:3]=[C:4]2[C:8](=[C:9]([N+:11]([O-:13])=[O:12])[CH:10]=1)[NH:7][C:6]([Si](C)(C)C)=[C:5]2[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1.O>[Cl:1][C:2]1[CH:3]=[C:4]2[C:8](=[C:9]([N+:11]([O-:13])=[O:12])[CH:10]=1)[NH:7][CH:6]=[C:5]2[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1

참가 물질

5

반응물 2

HCID 2724141Tetrabutylammonium FluorideHCID 684760765-Chloro-7-nitro-3-phenyl-2-trimethylsilyl-1H-indole

생성물 1

HCID 684718405-Chloro-3-phenyl-7-nitro-1H-indole수율 101.2%

시약·촉매·용매 2

HCID 962Water용매HCID 8028Tetrahydrofuran용매

실험 절차

5-Chloro-7-nitro-3-phenyl-2-trimethylsilyl-1H-indole (1.5 g, 4.35 mmol) obtained in Step 2 was dissolved in tetrahydrofurane (30 mL), and 1 M tetrabutylammoniumfluoride solution (5.2 mL, 5.2 mmol) was added in drops at 0° C. At the end of reaction, the resulting mixture was diluted with water and extracted with ethylacetate. The extract was washed with saturated sodium chloride solution, dried over anhydrous magnesium sulfate and filtered. The solvent was removed under reduced pressure and the residue was separated using column chromatography to give 5-chloro-3-phenyl-7-nitro-1H-indole (1.2 g, Yield 100%).

후처리

  1. customAt the end of reaction
  2. extractionextracted with ethylacetate
  3. washThe extract was washed with saturated sodium chloride solution
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. customThe solvent was removed under reduced pressure
  7. customthe residue was separated

출처 및 근거

ORD 기록
ord-4599e6e4bc7f485781140124c9c69bd3
출처 데이터셋
uspto-grants-2013_01
특허 번호
US08349885B2

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