Structure and Formation of Triorganylphosphoniocyclopropenylium Ions

Authors

  • Doz. Dr. Robert Weiss,

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    1. Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestrasse 42, D-8520 Erlangen (Germany)
    • Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestrasse 42, D-8520 Erlangen (Germany)
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  • Dr. Claus Priesner,

    1. Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestrasse 42, D-8520 Erlangen (Germany)
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  • Dipl.-Chem. Hilmar Wolf

    1. Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestrasse 42, D-8520 Erlangen (Germany)
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  • Functional cyclo-C3 Derivatives, Part 7. This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie.—Part 6: R. Weiss, C. Priesner, Angew. Chem. 90, 491 (1978); Angew. Chem. Int. Ed. Engl. 17, 457 (1978).

Abstract

original image

The first cation to have a hetero[3]radialene resonance structure is present in the salt (1). Its formation can be rationalized in terms of an elimination/addition reaction proceeding via a nucleophilic carbene. Such reactions were hither-to unknown in the Cmath image system.

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