Hexadentate Poly-Lewis Acids Based on 1,3,5-Trisilacyclohexane

Schäfer F, Neumann B, Stammler H-G, Mitzel NW (2021)
European Journal of Inorganic Chemistry 2021(30): 3083-3090.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We report the preparation of hexadentate poly-Lewis acids (PLA) based on 1,3,5-trisilacyclohexane backbones bearing two alkynyl groups attached to each of the silicon atoms. A rigid hexadentate PLA bearing six Lewis-acidic catecholatoboryl-substituents was prepared by a tin-boron exchange reaction. Its structure, determined by X-ray diffraction, is the first of a Lewis-acid-functionalised donor-free trisilacyclohexane. Flexible hexadentate PLA were prepared by hydroboration or hydrosilylation of hexavinyltrisilacyclohexane, resulting in PLA with six 9-BBN, SiCl3, SiCl2Me or SiClMe2 groups. The Lewis-acidity of the last one was increased by conversion with silver triflate, resulting in a PLA with six highly acidic silyl triflate groups attached to the 1,3,5-trisilacyclohexane unit as TfOSiMe2-C2H4- groups. Host-guest experiments of the above PLA demonstrated the suitability of the flexible representatives for complexation of neutral Lewis-based guest molecules under formation of 1 : 6 adducts (host: guest).
Stichworte
trisilacyclohexanes; poly-Lewis acids; host systems; silyl-triflate; boron
Erscheinungsjahr
2021
Zeitschriftentitel
European Journal of Inorganic Chemistry
Band
2021
Ausgabe
30
Seite(n)
3083-3090
ISSN
1434-1948
eISSN
1099-0682
Page URI
https://pub.uni-bielefeld.de/record/2956265

Zitieren

Schäfer F, Neumann B, Stammler H-G, Mitzel NW. Hexadentate Poly-Lewis Acids Based on 1,3,5-Trisilacyclohexane. European Journal of Inorganic Chemistry . 2021;2021(30):3083-3090.
Schäfer, F., Neumann, B., Stammler, H. - G., & Mitzel, N. W. (2021). Hexadentate Poly-Lewis Acids Based on 1,3,5-Trisilacyclohexane. European Journal of Inorganic Chemistry , 2021(30), 3083-3090. https://doi.org/10.1002/ejic.202100437
Schäfer, F., Neumann, B., Stammler, H. - G., and Mitzel, N. W. (2021). Hexadentate Poly-Lewis Acids Based on 1,3,5-Trisilacyclohexane. European Journal of Inorganic Chemistry 2021, 3083-3090.
Schäfer, F., et al., 2021. Hexadentate Poly-Lewis Acids Based on 1,3,5-Trisilacyclohexane. European Journal of Inorganic Chemistry , 2021(30), p 3083-3090.
F. Schäfer, et al., “Hexadentate Poly-Lewis Acids Based on 1,3,5-Trisilacyclohexane”, European Journal of Inorganic Chemistry , vol. 2021, 2021, pp. 3083-3090.
Schäfer, F., Neumann, B., Stammler, H.-G., Mitzel, N.W.: Hexadentate Poly-Lewis Acids Based on 1,3,5-Trisilacyclohexane. European Journal of Inorganic Chemistry . 2021, 3083-3090 (2021).
Schäfer, Fabian, Neumann, Beate, Stammler, Hans-Georg, and Mitzel, Norbert W. “Hexadentate Poly-Lewis Acids Based on 1,3,5-Trisilacyclohexane”. European Journal of Inorganic Chemistry 2021.30 (2021): 3083-3090.
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2021-09-27T14:58:05Z
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