Carbon Dioxide → 4,5-dihydro-5-methyl-6H-imidazo[1,5-a][1,4]benzodiazepin-6-one
Reaktionsgleichung
[CH3:1][N:2]1[C:8](=[O:9])[C:7]2[CH:10]=[CH:11][CH:12]=[CH:13][C:6]=2[N:5]2[CH:14]=[N:15][C:16](C(O)=O)=[C:4]2[CH2:3]1.C(=O)=O>>[CH3:1][N:2]1[C:8](=[O:9])[C:7]2[CH:10]=[CH:11][CH:12]=[CH:13][C:6]=2[N:5]2[CH:14]=[N:15][CH:16]=[C:4]2[CH2:3]1Komponenten
3
Versuchsvorschrift
8.2 g of 5,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxylic acid are heated to 300°. After completion of the carbon dioxide evolution, the residue is left to cool and the material is recrystallized from chloroform/hexane. After drying, there is obtained 4,5-dihydro-5-methyl-6H-imidazo[1,5-a][1,4]benzodiazepin-6-one of melting point 212°-213°.
Aufarbeitung
- temperatureto cool
- customthe material is recrystallized from chloroform/hexane
- customAfter drying