Versatile Reagent Ph3As(OTf)2: One‐Pot Synthesis of [P7(AsPh3)3][OTf]3 from PCl3 |
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| Authors: | Maximilian Donath Dr. Michael Bodensteiner Prof. Dr. Jan J. Weigand |
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| Affiliation: | 1. Fakult?t Chemie und Lebensmittelchemie, Technische Universit?t Dresden, 01062 Dresden (Germany), Fax: (+49)?351‐463‐31478;2. R?ntgenstrukturanalyse, Fakult?t für Chemie und Pharmazie, Universit?t Regensburg, 93040 Regensburg (Germany) |
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| Abstract: | Compound Ph3As(OTf)2 as a pentacoordinated AsV Lewis acid readily forms dicationic Lewis acid/base adducts upon addition of various Lewis bases. It also represents a stronger chloride‐abstracting agent than Me3SiOTf and facilitates the reductive coupling of PCl3 in the presence of AsPh3 to the unprecedented cation [P7(AsPh3)3]3+ as triflate salt. This crystallographically characterized nortricyclane‐type cation represents a P7R3‐derivative with the most electron‐withdrawing substituents, resulting in a pronounced effect on the structural parameters of the P7 core. |
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| Keywords: | 1,2‐dications Lewis acids nortricyclane phosphorus polycations |
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