Dimethylformamide → HCID 68887634, Verbindung

HRID 1294235Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1294235
Cl[CH2:2][C:3]1[CH:22]=[CH:21][C:6]([O:7][CH2:8][C:9]2[N:10]=[C:11]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)[O:12][C:13]=2[CH3:14])=[CH:5][CH:4]=1.[CH2:23]([O:25][C:26]1[CH:31]=[CH:30][C:29]([OH:32])=[CH:28][C:27]=1[CH2:33][C:34]([O:36][CH3:37])=[O:35])[CH3:24].CN(C)C=O.[H-].[Na+]>O>[CH3:37][O:36][C:34](=[O:35])[CH2:33][C:27]1[CH:28]=[C:29]([O:32][CH2:2][C:3]2[CH:22]=[CH:21][C:6]([O:7][CH2:8][C:9]3[N:10]=[C:11]([C:15]4[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=4)[O:12][C:13]=3[CH3:14])=[CH:5][CH:4]=2)[CH:30]=[CH:31][C:26]=1[O:25][CH2:23][CH3:24]

Komponenten

6

Edukt 4

HCID 6228DimethylformamideHCID 24758Sodium hydrideHCID 109469404-(4-Chloromethylphenoxy)methyl-5-methyl-2-phenyloxazoleHCID 17861380Methyl 2-(2-ethoxy-5-hydroxyphenyl)acetate

Produkt 1

HCID 68887634HCID 68887634, VerbindungAusbeute 70 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

To a mixture of 4-(4-chloromethylphenoxymethyl)-5-methyl-2-phenyloxazole (1.00 g), methyl 2-(2-ethoxy-5-hydroxyphenyl)acetate (0.60 g) and N, N-dimethylformamide (30 mL) was added sodium hydride (60%, oil, 0.14 g) under ice-cooling, and the mixture was stirred at room temperature for 2 hrs. The reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. After concentration of the organic layer, the residue was subjected to silica gel column chromatography to give crystals (0.70 g, 70%) of methyl-2-[2-ethoxy-5-[4-[(5-methyl-2-phenyl-4-oxazolyl)methoxy]benzyloxy]phenyl]acetate from a fraction eluted with ethyl acetate-hexane (1:4, v/v). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 82-83° C.

Aufarbeitung

  1. temperaturecooling
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate

Quellen und Nachweise

ORD-Eintrag
ord-e378eb0986544fbc855b7df8028b2a6a
Quelldatensatz
uspto-grants-2007_07
Patentnummer
US07238716B2

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