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

HRID 2221983Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2221983
Cl[CH2:2][C:3]1[CH:23]=[CH:22][C:6]([O:7][CH2:8][C:9]2[N:10]=[C:11](/[CH:15]=[CH:16]/[C:17]([O:19][CH2:20][CH3:21])=[O:18])[O:12][C:13]=2[CH3:14])=[C:5]([O:24][CH3:25])[CH:4]=1.[OH:26][C:27]1[C:31]([CH:32]=[O:33])=[CH:30][N:29]([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[N:28]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH:32]([C:31]1[C:27]([O:26][CH2:2][C:3]2[CH:23]=[CH:22][C:6]([O:7][CH2:8][C:9]3[N:10]=[C:11](/[CH:15]=[CH:16]/[C:17]([O:19][CH2:20][CH3:21])=[O:18])[O:12][C:13]=3[CH3:14])=[C:5]([O:24][CH3:25])[CH:4]=2)=[N:28][N:29]([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[CH:30]=1)=[O:33]

Komponenten

6

Edukt 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 69216903ethyl(2E)-3-{4[(4-chloromethyl-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}-2-propenoateHCID 178519806HCID 178519806, Verbindung

Produkt 1

HCID 86605899ethyl (2E)-3-{4-[(4-([(4-formyl-1-phenyl-1H-pyrazol-3-yl)oxy]methyl}-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}-2-propenoateAusbeute 54 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A mixture of ethyl (2E)-3-{4[(4-chloromethyl-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}-2-propenoate (2.50 g), 3-hydroxy-1-phenyl-1H-pyrazole-4-carbaldehyde (1.22 g), potassium carbonate (0.90 g) and N,N-dimethylformamide (50 mL) was stirred at room temperature for 5 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 (2E)-3-{4-[(4-{[(4-formyl-1-phenyl-1H-pyrazol-3-yl)oxy]methyl}-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}-2-propenoate as colorless crystals (1.81 g, yield 54%) from a fraction eluted with ethyl acetate-hexane (1:1, v/v). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 150-151° 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-5e7e31f333c54bde95ffb7b323418677
Quelldatensatz
uspto-grants-2008_05
Patentnummer
US07368578B2

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