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Hydrochloric Acid → (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenoic acid

HRID 2221799
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HRID 2221799 반응식
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:39])=[C:9]([CH2:11][O:12][C:13]2[CH:38]=[CH:37][C:16]([CH2:17][O:18][C:19]3[C:23](/[CH:24]=[CH:25]/[C:26]([O:28]CC)=[O:27])=[CH:22][N:21]([C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=4)[N:20]=3)=[CH:15][CH:14]=2)[N:10]=1.O1CCCC1.[OH-].[Na+].Cl>O.C(O)C>[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:39])=[C:9]([CH2:11][O:12][C:13]2[CH:14]=[CH:15][C:16]([CH2:17][O:18][C:19]3[C:23](/[CH:24]=[CH:25]/[C:26]([OH:28])=[O:27])=[CH:22][N:21]([C:31]4[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=4)[N:20]=3)=[CH:37][CH:38]=2)[N:10]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 86605780ethyl (2E)-3-(3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenoate

생성물 1

HCID 69216366(2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenoic acid수율 92%

시약·촉매·용매 2

HCID 702Ethanol용매HCID 962Water용매

실험 절차

To a mixture of ethyl (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenoate (0.38 g), tetrahydrofuran (3 mL) and ethanol (3 mL) was added 1N aqueous sodium hydroxide solution (3 mL), and the mixture was heated under reflux for 2 hrs. The reaction mixture was neutralized by adding 1N hydrochloric acid and water, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated to give (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}benzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenoic acid as colorless crystals (0.33 g, yield 92%). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 144-145° C.

후처리

  1. temperaturethe mixture was heated
  2. temperatureunder reflux for 2 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

출처 및 근거

ORD 기록
ord-8c3702e87a1a4c2fa4c95010efb92b13
출처 데이터셋
uspto-grants-2008_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07368578B2

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