Dimethylformamide → ethyl 5-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]-2-furancarboxylate

HRID 2221934

Reaktionsgleichung

Reaktionsgleichung von HRID 2221934
[CH:1]([C:3]1[C:4]([O:14][CH2:15][C:16]2[CH:39]=[CH:38][C:19]([O:20][CH2:21][C:22]3[N:23]=[C:24]([C:28]4[O:32][C:31]([C:33]([O:35][CH2:36][CH3:37])=[O:34])=[CH:30][CH:29]=4)[O:25][C:26]=3[CH3:27])=[C:18]([O:40][CH3:41])[CH:17]=2)=[N:5][N:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:7]=1)=O.[CH2:42]([P:51](=[O:58])([O:55][CH2:56][CH3:57])[O:52][CH2:53][CH3:54])P(=O)(OCC)OCC.CN(C)C=O.[H-].[Na+]>O>[CH2:56]([O:55][P:51](/[CH:42]=[CH:1]/[C:3]1[C:4]([O:14][CH2:15][C:16]2[CH:39]=[CH:38][C:19]([O:20][CH2:21][C:22]3[N:23]=[C:24]([C:28]4[O:32][C:31]([C:33]([O:35][CH2:36][CH3:37])=[O:34])=[CH:30][CH:29]=4)[O:25][C:26]=3[CH3:27])=[C:18]([O:40][CH3:41])[CH:17]=2)=[N:5][N:6]([C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH:7]=1)([O:52][CH2:53][CH3:54])=[O:58])[CH3:57]

Komponenten

6

Edukt 4

HCID 6228DimethylformamideHCID 15455Tetraethyl methylenediphosphonateHCID 24758Sodium hydrideHCID 86605877ethyl 5-{4-[(4-{[(4-formyl-1-phenyl-1H-pyrazol-3-yl)oxy]methyl}-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}-2-furancarboxylate

Produkt 1

HCID 86605876ethyl 5-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]-2-furancarboxylateAusbeute 47,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

To a mixture of ethyl 5-{4-[(4-{[(4-formyl-1-phenyl-1H-pyrazol-3-yl)oxy]methyl}-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}-2-furancarboxylate (0.70 g), tetraethyl methylenediphosphonate (0.40 g) and N,N-dimethylformamide (20 mL) was added sodium hydride (60% in oil, 0.06 g) at room temperature, and the mixture was stirred at the same temperature for 2 hrs. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to give ethyl 5-[4-({4-[({4-[(E)-2-(diethoxyphosphoryl)ethenyl]-1-phenyl-1H-pyrazol-3-yl}oxy)methyl]-2-methoxyphenoxy}methyl)-5-methyl-1,3-oxazol-2-yl]-2-furancarboxylate as colorless crystals (0.41 g, yield 46%) from a fraction eluted with acetate-hexane (9:1, v/v). Recrystallization from ethyl ethyl acetate-hexane gave colorless prism crystals. melting point: 129-130° C.

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-78959d276edf43f58c01d919c2547cce
Quelldatensatz
uspto-grants-2008_05
Patentnummer
US07368578B2

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