Polycyclische Aromatische Alkaloide, V.
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Bracher, Franz
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Article
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1990
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John Wiley and Sons
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English
⚖ 228 KB
Polycyclic Aromatic Alkaloids, V. – Synthesis of 2‐Bromoleptoclinidinone 4‐Bromo‐2‐nitroacetophenone (6) is selectively reduced to the amine 7 by Fe in aqueous acetic acid. Oxidative amination of quinolinequinone 8 with 7 gives 9. Acid‐catalyzed cyclization of 9, followed by anellation of a pyridin