N-bromobutanimide → HCID 178470082, Verbindung
Reaktionsgleichung
[CH2:1]([O:3][C:4]([C:6]1[C:7]([OH:14])=[N:8][N:9]([CH:11]([CH3:13])[CH3:12])[CH:10]=1)=[O:5])[CH3:2].[Br:15]N1C(=O)CCC1=O>ClCCl>[CH2:1]([O:3][C:4]([C:6]1[C:7]([OH:14])=[N:8][N:9]([CH:11]([CH3:13])[CH3:12])[C:10]=1[Br:15])=[O:5])[CH3:2]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
3-Hydroxy-1-isopropylpyrazole-4-carboxylic acid ethyl ester (10.5 g) was dissolved in dichloromethane (100 mL), and N-bromosuccinimide (14.1 g) was added to the solution under ice cooling. The mixture was stirred at room temperature for 6 hours. The solvent was removed under reduced pressure, and the obtained residue was purified by column chromatography on silica gel (eluent:ethyl acetate/hexane=1/5) to give the title compound (5.9 g)