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ChemInform Abstract: A Novel Heterocyclization of 1-Acetylenic Derivatives of 9,10-Anthraquinone.

โœ Scribed by M. S. SHVARTSBERG; I. D. IVANCHIKOVA; S. F. VASILEVSKY

Publisher
John Wiley and Sons
Year
2010
Weight
30 KB
Volume
30
Category
Article
ISSN
0931-7597

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ChemInform Abstract: Heterocyclizations
ChemInform Abstract: Heterocyclizations of 1,4-Diazido-2,3-diarylthio-9,10-anthraquinones.
โœ L. M. GORNOSTAEV; T. I. LAVRIKOVA; E. V. ARNOL'D ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 28 KB

Heterocyclizations of 1,4-Diazido-2,3-diarylthio-9,10-anthraquinones. -Diazidoanthraquinones of type (II) undergo stepwise thermic cyclization. Under mild conditions, the phenothiazines (III) are obtained, whereas in refluxing toluene both azido groups participate in cyclizations to give oxazolo an