Diphenyl Ether → HCID 178469490, Verbindung
Reaktionsgleichung
[CH3:1][C:2]1[C:6]([C:7]2[CH:8]=[C:9]([NH:13][CH:14]=[C:15]([C:21]([O:23][CH2:24][CH3:25])=[O:22])[C:16](OCC)=[O:17])[CH:10]=[CH:11][CH:12]=2)=[C:5]([CH3:26])[O:4][N:3]=1.C1(OC2C=CC=CC=2)C=CC=CC=1>>[CH3:1][C:2]1[C:6]([C:7]2[CH:8]=[C:9]3[C:10]([C:16]([OH:17])=[C:15]([C:21]([O:23][CH2:24][CH3:25])=[O:22])[CH:14]=[N:13]3)=[CH:11][CH:12]=2)=[C:5]([CH3:26])[O:4][N:3]=1Komponenten
3
Versuchsvorschrift
Diethyl ({[3-(3,5-dimethyl-4-isoxazolyl)phenyl]amino}methylidene)-propanedioate (for a preparation see Intermediate 5, 75 g, 210 mmol) was suspended in boiling diphenylether (1 L) and heated to reflux for 30 minutes. The reaction mixture was cooled and precipitated with iPr2O to give the title compound as a brown powder (50 g, 76%). 1H NMR (300 MHz, DMSO-d6, ppm) δ: 12.45 (brs, 1H), 8.76 (s, 1H), 8.34 (d, J=8.6 Hz, 1H), 7.76 (s, 1H), 7.59 (d, J=8.6 Hz, 1H), 4.36 (q, J=7.1 Hz, 2H), 2.62 (s, 3H), 2.43 (s, 3H), 1.43 (s, J=7.1 Hz, 3H).
Aufarbeitung
- temperatureheated
- temperatureto reflux for 30 minutes
- temperatureThe reaction mixture was cooled
- customprecipitated with iPr2O
Quellen und Nachweise
- ORD-Eintrag
- ord-18c3f4fda8cb4893bc83b38453c9b540
- Quelldatensatz
- uspto-grants-2013_10
- Patentnummer
- US08557984B2
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