Monatshefte für Chemie/Chemical Monthly

Zur Reaktion von 4-Hydroxy-2-chinolon mit reaktiven Malonsäurederivaten

G Nöhammer, T Kappe

文献索引：Noehammer,G.; Kappe,T. Monatshefte fuer Chemie, 1976 , vol. 107, p. 859 - 863

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被引用次数: 6

摘要

Abstract The reaction of 4-hydroxy-2-quinolone (1) with malonyl chlorides 2 in the presence of N, N-dimethylaniline yields the linear pyrono-quinolones 4. These are thermically rearranged to angular derivatives 5, which can also be obtained by direct condensation of 1 with trichlorophenyl malonates 3. The reaction of 4-benzyloxy-2-quinolone with 2a gives the mesoionic 1, 3-oxazine derivative 8.