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Imidazole → 2-(1-((tert-Butyldimethylsilyl)oxy)-2-methylpropan-2-yl)-6-fluoro-5-nitro-1H-indole

HRID 1847924
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HRID 1847924 반응식
[F:1][C:2]1[CH:10]=[C:9]2[C:5]([CH:6]=[C:7]([C:11]([CH3:15])([CH3:14])[CH2:12][OH:13])[NH:8]2)=[CH:4][C:3]=1[N+:16]([O-:18])=[O:17].[CH3:19][C:20]([Si:23](Cl)([CH3:25])[CH3:24])([CH3:22])[CH3:21].N1C=CN=C1>C(Cl)Cl>[Si:23]([O:13][CH2:12][C:11]([C:7]1[NH:8][C:9]2[C:5]([CH:6]=1)=[CH:4][C:3]([N+:16]([O-:18])=[O:17])=[C:2]([F:1])[CH:10]=2)([CH3:15])[CH3:14])([C:20]([CH3:22])([CH3:21])[CH3:19])([CH3:25])[CH3:24]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chlorideHCID 591293832-(6-fluoro-5-nitro-1H-indol-2-yl)-2-methylpropan-1-ol

생성물 1

HCID 591292962-(1-((tert-Butyldimethylsilyl)oxy)-2-methylpropan-2-yl)-6-fluoro-5-nitro-1H-indole수율 38%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a stirred solution of 2-(6-fluoro-5-nitro-1H-indol-2-yl)-2-methylpropan-1-ol (10.0 g) in CH2Cl2 was added TBSCl (8.9 g), imidazole (8.1 g, 0.12 mol) at room temperature. The mixture was stirred overnight. The solvent was evaporated in vacuo and the residue was purified by chromatography on silica gel (10% EtOAc in petroleum ether) to give 2-(1-(tert-butyldimethylsilyloxy)-2-methylpropan-2-yl)-6-fluoro-5-nitro-1H-indole (5.3 g, 38%). 1H NMR (300 MHz, CDCl3) 9.51 (s, 1H), 8.31 (d, J=7.5 Hz, 1H), 7.02 (d, J=11.7 Hz, 1H), 6.32 (s, 1H), 3.63 (s, 2H), 1.35 (s, 6H), 0.99 (s, 9H), 0.11 (s, 6H).

후처리

  1. customThe solvent was evaporated in vacuo
  2. customthe residue was purified by chromatography on silica gel (10% EtOAc in petroleum ether)

출처 및 근거

ORD 기록
ord-c7e85a19568848a9b1e0c392ea83df80
출처 데이터셋
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08952049B2

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