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ChemInform Abstract: Thermal Cycloaddition Reactions of Azulene-1,5-quinones and Azulene-1,7-quinones with Cyclic Dienes and Cycloheptatriene.

✍ Scribed by Akira Mori; Yong Zhe Yan; Nobuo Kato; Hitoshi Takeshita; Tetsuo Nozoe

Publisher: John Wiley and Sons
Year: 2010
Weight: 39 KB
Volume: 30
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199944053

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✦ Synopsis

Thermal Cycloaddition Reactions of Azulene-1,5-quinones and Azulene-1,7-quinones with Cyclic Dienes and Cycloheptatriene.

-Azulenequinones,e.g. (I) and (XII), react with 4π components such as (II) and (IV) to give [2+4] -[6+4] cycloadducts. From the reaction of (I) with (IV) also thermally disallowed [8+4] cycloadducts are obtained [cf. compounds (V) and (VI)]. The reaction of (I) and (XII) with triene (VIII) affords cage and ene products.

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