3,5-Dimethylpyrazole → 4-(4-Chlorophenyl)-2-(3,5-dimethyl-1-pyrazolyl)-5-oxazolepropionic acid
Reaktionsgleichung
Cl[C:2]1[O:3][C:4]([CH2:14][CH2:15][C:16]([O:18]C)=[O:17])=[C:5]([C:7]2[CH:12]=[CH:11][C:10]([Cl:13])=[CH:9][CH:8]=2)[N:6]=1.[CH3:20][C:21]1[CH:25]=[C:24]([CH3:26])[NH:23][N:22]=1>>[Cl:13][C:10]1[CH:9]=[CH:8][C:7]([C:5]2[N:6]=[C:2]([N:22]3[C:21]([CH3:20])=[CH:25][C:24]([CH3:26])=[N:23]3)[O:3][C:4]=2[CH2:14][CH2:15][C:16]([OH:18])=[O:17])=[CH:12][CH:11]=1Komponenten
3
Versuchsvorschrift
In the same manner as in Example 30, obtained was: 4-(4-chlorophenyl)-2-(3,5-dimethyl-1-pyrazolyl)-5-oxazolepropionic acid (yield: 90%) by reaction of methyl 2-chloro-4-(4-chlorophenyl)-5-oxazolepropionate with 3,5-dimethylpyrazole followed by hydrolysis of the resulting product. This was recrystallized from ethanol to give colorless needles. mp 201-202° C.
Aufarbeitung
- customIn the same manner as in Example 30, obtained