Reactivity of Tetrahalo- and Difluorodiboranes(4) toward Lewis Basic Platinum(0): Bis(boryl), Borylborato, and Doubly Boryl-Bridged Platinum Complexes
| Autor: | Annalena Gärtner, Rüdiger Bertermann, Andrea Deißenberger, Alena Haefner, Krzysztof Radacki, Jonas H. Muessig, J. Oscar C. Jiménez-Halla, Rian D. Dewhurst, Torsten Thiess, Dominic Prieschl, Sunewang R. Wang, Maximilian Dietz, Todd B. Marder, Julian Böhnke, Carina Brunecker, Holger Braunschweig, Alexandra Trumpp |
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| Rok vydání: | 2018 |
| Předmět: |
010405 organic chemistry
Chemistry Trans effect chemistry.chemical_element General Chemistry 010402 general chemistry 01 natural sciences Biochemistry Medicinal chemistry Catalysis 0104 chemical sciences chemistry.chemical_compound Colloid and Surface Chemistry Reactivity (chemistry) Platinum Derivative (chemistry) |
| Zdroj: | Journal of the American Chemical Society. 140(40) |
| ISSN: | 1520-5126 |
| Popis: | The reaction of the tetrahalodiboranes(4) B2F4, B2Cl4, and B2Br4 with a Lewis basic platinum(0) complex led to the isolation of the cis-bis(difluoroboryl) complex cis-[(Cy3P)2Pt(BF2)2] (1) and the novel borylborato complexes trans-[(Cy3P)2Pt{B(X)–BX3}] (2, X = Cl; 3, X = Br), respectively. The trans influence of the borylborato group was found to be one of the strongest ever observed experimentally. Furthermore, the reactivity of little-explored diaryldifluorodiboranes(4) F2B–BMes2 and the new derivative F2B–BAn2 (An = 9-anthryl) toward a range of platinum(0) complexes was investigated. Reactions with relatively nonbulky platinum(0) complexes led to the formation of unsymmetrical cis-bis(boryl) complexes cis-[(R3P)2Pt(BF2)(BMes2)] (6, R = Me; 7, R = Et) as well as the first example of a fourfold-unsymmetrical bis(boryl) complex, [(Me3P)(Cy3P)Pt(BF2)(BMes2)] (12). The use of a more bulky Pt complex provided access to the unprecedented dinuclear bis(boryl) complexes [{(iPr3P)Pt}2(μ-BF2)(μ-BAr2)] (8, Ar = Me... |
| Databáze: | OpenAIRE |
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