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Studies on quinones. Part 23. Synthesis of azepinones fused to quinone systems

✍ Scribed by J. A. Valderrama; H. Pessoa-Mahana; R. Tapia


Book ID
112130417
Publisher
Journal of Heterocyclic Chemistry
Year
1992
Tongue
English
Weight
325 KB
Volume
29
Category
Article
ISSN
0022-152X

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Studies on quinones. Part 32. Regioselec
✍ Jaime A. Valderrama; M.Florencia GonzΓ‘lez; Claudio Valderrama πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 French βš– 622 KB

The Diels-Alder reaction of juglone (4) and bromojuglone 18 with l-cyclohexenecartx~xaldehyde dimethylhydrazone (3) is described. Through these cycloaddition reactions 8-hydroxy-1,2,3,4-tetrahydrobenz[b]phenantridin-7,12-dione (5) was obtained i n 55 and 78% yield, respectively. Oxidation of 5 to 8-