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Carbon Dioxide → 2-(1-{[5-(Difluoromethoxy)-2-methylphenyl]carbonyl}piperidin-4-yl)-5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one

HRID 1914177
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HRID 1914177 반응식
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:11]2[C:12]([CH3:34])([CH3:33])[C:13](=[O:32])[N:14]([CH:16]3[CH2:21][CH2:20][N:19]([C:22]([C:24]4[CH:29]=[C:28]([OH:30])[CH:27]=[CH:26][C:25]=4[CH3:31])=[O:23])[CH2:18][CH2:17]3)[N:15]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10].C(=O)=O.C1COCC1.Cl[CH:44]([F:46])[F:45]>[I-].C([N+](CCCC)(CCCC)CCCC)CCC.CO.O1CCOCC1.O.C(OCC)C>[F:45][CH:44]([F:46])[O:30][C:28]1[CH:27]=[CH:26][C:25]([CH3:31])=[C:24]([C:22]([N:19]2[CH2:20][CH2:21][CH:16]([N:14]3[C:13](=[O:32])[C:12]([CH3:34])([CH3:33])[C:11]([C:5]4[CH:6]=[CH:7][C:8]([O:9][CH3:10])=[C:3]([O:2][CH3:1])[CH:4]=4)=[N:15]3)[CH2:17][CH2:18]2)=[O:23])[CH:29]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

10

반응물 4

HCID 280Carbon DioxideHCID 6372ChlorodifluoromethaneHCID 8028TetrahydrofuranHCID 462020675-(3,4-Dimethoxyphenyl)-2-{1-[(5-hydroxy-2-methylphenyl)carbonyl]piperidin-4-yl}-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one

생성물 1

HCID 673654622-(1-{[5-(Difluoromethoxy)-2-methylphenyl]carbonyl}piperidin-4-yl)-5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one

시약·촉매·용매 5

HCID 67553Tetrabutylammonium Iodide촉매HCID 887Methanol용매HCID 962Water용매HCID 3283Diethyl Ether용매HCID 312751,4-Dioxane용매

실험 절차

In a pressure vessel 0.47 g of 5-(3,4-dimethoxyphenyl)-2-{1-[(5-hydroxy-2-methylphenyl)carbonyl]piperidin-4-yl}-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one (compound described in example 85) and 37 mg tetrabutylammonium iodide are solved in a mixture of 20 ml methanol and 5 ml dioxane. After the reaction mixture has been frozen to a solid block upon cooling with dry ice, a layer of 4 ml THF is placed above the frozen reaction mixture and the pressure vessel is charged with 2.8 g of chloro(difluoro)methane. The pressure vessel is heated for 90 minutes to 70° C. and after the reaction mixture has reached RT, it is portioned between diethyl ether and water. After separation of the phases, the organic phase is washed with brine, dried over MgSO4, and the solvents are removed under reduced pressure. The crude product is purified by chromatography (silica gel and DCM) to yield the title compound.

후처리

  1. temperatureAfter the reaction mixture has been frozen to a solid block
  2. temperatureThe pressure vessel is heated for 90 minutes to 70° C.
  3. customhas reached RT
  4. customAfter separation of the phases
  5. washthe organic phase is washed with brine
  6. dry with materialdried over MgSO4
  7. customthe solvents are removed under reduced pressure
  8. customThe crude product is purified by chromatography (silica gel and DCM)

출처 및 근거

ORD 기록
ord-1fddf4a15aeb46e0a6080db9d768ed68
출처 데이터셋
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08609848B2

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