Hydrochloric Acid → HCID 23076506, Verbindung

HRID 2221948Notizen

Reaktionsgleichung

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

Komponenten

Reaktionsbedingungen

Temperatur: 60 °C

Versuchsvorschrift

A mixture of ethyl 3-hydroxy-1-methyl-1H-pyrazole-4-carboxylate (1.93 g), 4-(4-chloromethyl-2-methoxyphenoxymethyl)-5-methyl-2-phenyl-1,3-oxazole (3.89 g), potassium carbonate (3.15 g) and N,N-dimethylformamide (30 mL) was stirred overnight at 60° C. The reaction mixture was poured into dilute hydrochloric acid, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The obtained colorless crystals were collected by filtration to give ethyl 3-{[3-methoxy-4-(5-methyl-2-phenyl-1,3-oxazol-4-ylmethoxy)benzyl]oxy}-1-methyl-1H-pyrazole-4-carboxylate (5.23 g, yield 97%). The crystals were recrystallized from acetone-hexane. melting point: 134-135° C.

Aufarbeitung

extractionthe mixture was extracted with ethyl acetate
washThe ethyl acetate layer was washed with saturated brine
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated
filtrationThe obtained colorless crystals were collected by filtration

Quellen und Nachweise

ORD-Eintrag: ord-1949f580b4bd4501b31c916690a93157
Quelldatensatz: uspto-grants-2008_05
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07368578B2

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