Dimethylformamide → methyl [3-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxy]-1-phenyl-1H-pyrazol-4-yl]acetate

HRID 1295323Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1295323
[OH:1][C:2]1[C:6]([CH2:7][C:8]([O:10][CH3:11])=[O:9])=[CH:5][N:4]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[N:3]=1.Cl[CH2:19][C:20]1[CH:39]=[CH:38][C:23]([O:24][CH2:25][C:26]2[N:27]=[C:28]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)[O:29][C:30]=2[CH3:31])=[CH:22][CH:21]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH3:31][C:30]1[O:29][C:28]([C:32]2[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=2)=[N:27][C:26]=1[CH2:25][O:24][C:23]1[CH:22]=[CH:21][C:20]([CH2:19][O:1][C:2]2[C:6]([CH2:7][C:8]([O:10][CH3:11])=[O:9])=[CH:5][N:4]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)[N:3]=2)=[CH:39][CH:38]=1

Komponenten

6

Edukt 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 109469404-(4-Chloromethylphenoxy)methyl-5-methyl-2-phenyloxazoleHCID 178499543HCID 178499543, Verbindung

Produkt 1

HCID 86591685methyl [3-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxy]-1-phenyl-1H-pyrazol-4-yl]acetateAusbeute 75,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

A mixture of methyl (3-hydroxy-1-phenyl-1H-pyrazol-4-yl)acetate (464 mg), 4-(4-chloromethylphenoxymethyl)-5-methyl-2-phenyloxazole (628 mg), potassium carbonate (553 mg) and N,N-dimethylformamide (10 ml) was stirred at 60° C. for 4 hrs. The reaction mixture was poured into water and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO) and concentrated. The residue was subjected to silica gel column chromatography, and methyl [3-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxy]-1-phenyl-1H-pyrazol-4-yl]acetate (767 mg, yield 75%) was obtained as colorless crystals from a fraction eluted with ethyl-acetate. The crystals were recrystallized from ethyl acetate-hexane. melting point: 113–114° C.

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried (MgSO)
  4. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-e068df41c0144db1bf08db9084eb82ea
Quelldatensatz
uspto-grants-2007_07
Patentnummer
US07241785B2

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