| Abstrakt: |
Depending on the conditions selected, the reaction of 2,3-dioxo-4-(N,N-dimethylaminomethylene)hexahydroazepine with hydroxylamine gives 2,3-dioxo-4-formylhexahydroazepine 4-oxime, 8-oxo-8H-4,5,6,7-tetrahydroisoxazolo[5,4-c]azepine, or 2-oxo-3-hydroxy-4-cyano-2H-1,5,6,7-tetrahydroazepine. The reaction of the latter with aromatic amines and hydrazine hydrate was used to synthesize 3-arylamino-2-oxo-4-cyano-2H-1,5,6,7-tetrahydroazepines and 3-amino-8-oxo-8H-4,5,6,7-tetra-hydropyrazolo[5,4-c]azepine, respectively. The structures of the compounds obtained were confirmed by the IR, UV, and PMR spectra. |
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