Water → 3-Iodo-5-nitro-1-trityl-1H-indazole

HRID 1983483노트

반응식

HRID 1983483 반응식
[I:1][C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([N+:11]([O-:13])=[O:12])[CH:9]=2)[NH:4][N:3]=1.[H-].[Na+].[C:16](Cl)([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)([C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1)[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1.O>O1CCCC1.C(OCC)(=O)C>[I:1][C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([N+:11]([O-:13])=[O:12])[CH:9]=2)[N:4]([C:16]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)([C:29]2[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=2)[C:23]2[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=2)[N:3]=1

참가 물질

7

반응물 4

HCID 962WaterHCID 6456Trityl chlorideHCID 24758Sodium hydrideHCID 178526495HCID 178526495, 화합물

생성물 1

HCID 222608163-Iodo-5-nitro-1-trityl-1H-indazole수율 95.9%

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매HCID 8857Ethyl Acetate용매

실험 절차

To a solution of 27.5 g of 3-iodo-5-nitro-1H-indazole in 300 ml tetrahydrofuran at 0° C. in an atmosphere of nitrogen gas was added 6.1 g of 60% sodium hydride, and the mixture was stirred at the same temperature for 10 minutes. To the mixture was added 39.8 g of trityl chloride, followed by stirring at room temperature for 1 hour. Water was added and the mixture was diluted with ethyl acetate. The organic layer was sequentially washed with saturated aqueous ammonium chloride solution and brine, dried over anhydrous magnesium sulfate and the solvent was evaporated. The resulting crude crystals were washed with diethyl ether, to give 48.5 g of the title compound as colorless crystals.

후처리

  1. stirringby stirring at room temperature for 1 hour
  2. washThe organic layer was sequentially washed with saturated aqueous ammonium chloride solution and brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated
  5. washThe resulting crude crystals were washed with diethyl ether

출처 및 근거

ORD 기록
ord-101456b1e1844a61a18fdcbcd2fda82e
출처 데이터셋
uspto-grants-2009_06
특허 번호
US07541376B2

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