Sodium Acetate → HCID 24828929, Verbindung

Reaktionsgleichung

[CH2:1]([O:3][C:4](=[O:26])[C:5](=[N:17][NH:18][C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=1[Cl:25])[C:6](=[O:16])[CH:7](Br)[C:8]1[CH:13]=[CH:12][C:11]([Cl:14])=[CH:10][CH:9]=1)[CH3:2].C([O-])(=O)C.[Na+]>CO.C1CCCCC1>[CH2:1]([O:3][C:4]([C:5]1[C:6]([OH:16])=[C:7]([C:8]2[CH:13]=[CH:12][C:11]([Cl:14])=[CH:10][CH:9]=2)[N:18]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=2[Cl:25])[N:17]=1)=[O:26])[CH3:2]

Komponenten

Versuchsvorschrift

A mixture of 4-bromo4-(4-chloro-phenyl)-2-[(2-chloro-phenyl)-hydrazono]-3-oxo-butyric acid ethyl ester (12.1 g, 26 mmol) and sodium acetate (10.8 g, 130 mmol) in methanol (100 ml) was heated at reflux for 4 hours, cooled, concentrated in vacuo and the residue partitioned between ethyl acetate and water. The organic layer was washed with brine, dried (Na2SO4) and concentrated in vacuo to afford a solid. A slurry of this material in cyclohexane was heated to reflux and allowed to stir at ambient temperature for 2 hours, and filtered to afford the title compound (I-1d) as a yellow solid (I-1d), 6.5 g.