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Photochemical [2+2] Cycloaddition between Parallel CC and NN Double Bonds

Authors

  • Dr. Wilfried Berning,

    Corresponding author
    1. Institut für Organische Chemie der Universität, Am Hubland, D-8700 Würzburg (Germany)
    • Institut für Organische Chemie der Universität, Am Hubland, D-8700 Würzburg (Germany)
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  • Prof. Dr. Siegfried Hünig

    1. Institut für Organische Chemie der Universität, Am Hubland, D-8700 Würzburg (Germany)
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  • From the dissertation by W. Berning, Universität Würzburg 1977. This work was supported by the Fonds der Chemischen Industrie and the BASF AG, Ludwigshafen.

Abstract

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A [π2s + π2s]-photocyclization between non-activated CC and NN double bonds has been observed for the first time for the rigid molecule (1), which is transformed into a novel cage compound. In other cases this ring closure is precluded by the faster elimination of N2.

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