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Reaction of a P/Al-Based Frustrated Lewis Pair with Ammonia, Borane, and Amine–Boranes: Adduct Formation and Catalytic Dehydrogenation

Authors

  • Dr. Christian Appelt,

    1. Institut für Anorganische und Analytische Chemie der Westfälischen Wilhelms-Universität Münster, Corrensstrasse 30, 48149 Münster (Germany)
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  • Dr. J. Chris Slootweg,

    Corresponding author
    1. Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
    • Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
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  • Prof. Dr. Koop Lammertsma,

    1. Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
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  • Prof. Dr. Werner Uhl

    Corresponding author
    1. Institut für Anorganische und Analytische Chemie der Westfälischen Wilhelms-Universität Münster, Corrensstrasse 30, 48149 Münster (Germany)
    • Institut für Anorganische und Analytische Chemie der Westfälischen Wilhelms-Universität Münster, Corrensstrasse 30, 48149 Münster (Germany)
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  • This work was supported by the Deutsche Forschungsgemeinschaft.

Abstract

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Open wide! The geminal P/Al-based frustrated Lewis pair (Mes2P)(tBu2Al)C[DOUBLE BOND]C(H)Ph forms stable Lewis adducts with BH3 and NH3. This compound facilitates the dehydrocoupling of the ammonia–borane adduct by unusual N[BOND]H bond activation and elimination of dihydrogen at the boron center, and it is a very active main-group-based FLP catalyst for the dehydrogenation of amine–borane H3B⋅NMe2H. Mes=mesityl.

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