Dimethylformamide → Ethyl 2-[2-[4-[(5-methyl-2-phenyl-4-oxazolyl)methoxy]benzyloxy]phenyl]acetate

HRID 1294241

Reaktionsgleichung

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

Komponenten

Reaktionsbedingungen

Temperatur: 90 °C

Versuchsvorschrift

A mixture of 4-(4-chloromethylphenoxymethyl)-5-methyl-2-phenyloxazole (1.91 g), ethyl 2-(2-hydroxyphenyl)acetate (1.00 g), anhydrous potassium carbonate (0.76 g) and N,N-dimethylformamide (20 mL) was stirred at 90° C. for 2 hrs. The reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The obtained residue was subjected to silica gel column chromatography to give ethyl 2-[2-[4-[(5-methyl-2-phenyl-4-oxazolyl)methoxy]benzyloxy]phenyl]acetate as an oil (1.35 g, 54%) from a fraction eluted with ethyl acetate-hexane (1:4, v/v).

Aufarbeitung

extractionextracted with ethyl acetate
washThe organic layer was washed with saturated brine
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag: ord-9b58750fba3e41c79a275a02166a0014
Quelldatensatz: uspto-grants-2007_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07238716B2

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