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Water → 2-tert-butyl-4-{(E)-2-[3-(methoxymethoxy)-1-phenyl-1H-pyrazol-4-yl]ethenyl}-1,3-thiazole

HRID 2221680
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HRID 2221680 반응식
[C:1]([C:5]1[S:6][CH:7]=[C:8]([CH2:10]P(=O)(OCC)OCC)[N:9]=1)([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].[CH3:21][O:22][CH2:23][O:24][C:25]1[C:29]([CH:30]=O)=[CH:28][N:27]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[N:26]=1.O>O1CCCC1>[C:1]([C:5]1[S:6][CH:7]=[C:8](/[CH:10]=[CH:30]/[C:29]2[C:25]([O:24][CH2:23][O:22][CH3:21])=[N:26][N:27]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)[CH:28]=2)[N:9]=1)([CH3:2])([CH3:3])[CH3:4]
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참가 물질

6

반응물 4

HCID 962WaterHCID 24758Sodium hydrideHCID 230765133-(methoxymethoxy)-1-phenyl-1H-pyrazole-4-carbaldehydeHCID 86605750Diethyl [(2-tert-butyl-1,3-thiazol-4-yl)methyl]phosphonate

생성물 1

HCID 230764722-tert-butyl-4-{(E)-2-[3-(methoxymethoxy)-1-phenyl-1H-pyrazol-4-yl]ethenyl}-1,3-thiazole수율 93.2%

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매

실험 절차

To a solution of diethyl [(2-tert-butyl-1,3-thiazol-4-yl)methyl]phosphonate (2.2 g) in tetrahydrofuran (100 mL) was added sodium hydride (60% in oil, 0.48 g) at room temperature, and the mixture was stirred for 30 min. 3-(Methoxymethoxy)-1-phenyl-1H-pyrazole-4-carbaldehyde (2.3 g) was added to the reaction mixture, and the mixture was heated under reflux for 3 hrs. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography and eluted with ethyl acetate-hexane (4:1, v/v) to give 2-tert-butyl-4-{(E)-2-[3-(methoxymethoxy)-1-phenyl-1H-pyrazol-4-yl]ethenyl}-1,3-thiazole as pale-yellow crystals (2.6 g, yield 71%). melting point: 112-113° C.

후처리

  1. temperaturethe mixture was heated
  2. temperatureunder reflux for 3 hrs
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe ethyl acetate layer was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated
  7. washeluted with ethyl acetate-hexane (4:1

출처 및 근거

ORD 기록
ord-afbd00477cc749c9842a5a48931d71a9
출처 데이터셋
uspto-grants-2008_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07368578B2

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