Reaction of 9-diazofluorene with 2,3-dichloro-5,6-dicyano-p-benzoquinone: The structure and the behaviors of the resulting product.
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概要
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The title reaction gave 3′,4′-dichloro-1′,6′-dicyanospiro[fluorene]-9,7′-[3′]norcarene]-2′,5′-dione (<B>2</B>) in a good yield. Recrystallizations of <B>2</B> from solvents such as benzene, dioxane, acetonitrile, and acetone gave each molecular complex consisting of a <B>2</B>/solvent molar ratio of 1:1. The structure of <B>2</B> was determined by the use of one complex, <B>2</B>·CH<SUB>3</SUB>COCH<SUB>3</SUB>, by an X-ray crystallographic analysis, which revealed that an interaction between <B>2</B> and acetone was not very strong. Such a host–guest interaction was shown also from <SUP>1</SUP>H NMR spectroscopy and a differential thermal analysis of the complex. Compound <B>2</B> afforded the corresponding spiroacetals of 9-fluorenone through reactions with ethylene glycol and 1,3-propanediol.
- 公益社団法人 日本化学会の論文
著者
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KUSHI Yoshihiko
Institute for Molecular Science
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KUMA Hiro
Institute of Chemistry, College of General Education, Osaka University
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Kuma Hiro
Institute Of Chemistry College Of General Education Osaka University
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Nagai Toshikazu
Institute Of Chemistry College Of General Education Osaka University
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Shingaki Tadao
Institute of Chemistry, College of General Education, Osaka University
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Kushi Yoshihiko
Institute of Chemistry, College of General Education, Osaka University
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