Zur Reaktion von 4-Hydroxy-2-chinolon mit reaktiven Malonsäurederivaten
作者： Gerhard N�hammer , Thomas Kappe
DOI: 10.1007/BF00904471
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摘要: The reaction of 4-hydroxy-2-quinolone (1) with malonyl chlorides2 in the presence N,N-dimethylaniline yields linear pyrono-quinolones4. These are thermically rearranged to angular derivatives5, which can also be obtained by direct condensation of1 trichlorophenyl malonates3. 4-benzyloxy-2-quinolone with2a gives mesoionic 1,3-oxazine derivative8.
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