Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene
Franke M, Klingsiek MJ, Buth J, Lamm J-H, Neumann B, Stammler H-G, Mitzel NW (2024)
Dalton Transactions.
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Abstract / Bemerkung
Hexadentate poly-Lewis acids (PLA) based on the bowl-shaped tribenzotriquinacene (TBTQ) have been synthesised. The introduction of three n-propyl groups into the benzhydrylic positions of the TBTQ backbone has significantly increased the solubility of the subsequently derived compounds. Semi-flexible PLAs containing boron and aluminium were obtained by hydrometallation of the corresponding 2,3,6,7,10,11-hexaalkynyl-TBTQ. Other rigid hexadentate PLAs were synthesised by stannylation of the corresponding alkyne units with Me3SnNMe2 followed by tin-element exchange reactions. The Lewis acidity of these PLAs was investigated in host-guest experiments with pyridine. Further experiments with bidentate bases showed correlations between their flexibility, their Lewis basicity and the complexation behaviour towards the synthesised PLAs. Addition of bis((dimethylphosphino)methyl)dimethylsilane (BisPhos) to solutions of the rigid alkynyl PLAs led to the formation of 3:1 adducts. Single crystal X-ray diffraction was used to further elucidate the host-guest connectivtiy. In addition, a sixfold pnictogen-bonding donor was synthesised by tin-antimony exchange.
Erscheinungsjahr
2024
Zeitschriftentitel
Dalton Transactions
eISSN
1477-9234
Page URI
https://pub.uni-bielefeld.de/record/2987684
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Franke M, Klingsiek MJ, Buth J, et al. Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene. Dalton Transactions. 2024.
Franke, M., Klingsiek, M. J., Buth, J., Lamm, J. - H., Neumann, B., Stammler, H. - G., & Mitzel, N. W. (2024). Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene. Dalton Transactions. https://doi.org/10.1039/d4dt00379a
Franke, Maurice, Klingsiek, Maximilian Julius, Buth, Julian, Lamm, Jan-Hendrik, Neumann, Beate, Stammler, Hans-Georg, and Mitzel, Norbert W. 2024. “Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene”. Dalton Transactions.
Franke, M., Klingsiek, M. J., Buth, J., Lamm, J. - H., Neumann, B., Stammler, H. - G., and Mitzel, N. W. (2024). Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene. Dalton Transactions.
Franke, M., et al., 2024. Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene. Dalton Transactions.
M. Franke, et al., “Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene”, Dalton Transactions, 2024.
Franke, M., Klingsiek, M.J., Buth, J., Lamm, J.-H., Neumann, B., Stammler, H.-G., Mitzel, N.W.: Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene. Dalton Transactions. (2024).
Franke, Maurice, Klingsiek, Maximilian Julius, Buth, Julian, Lamm, Jan-Hendrik, Neumann, Beate, Stammler, Hans-Georg, and Mitzel, Norbert W. “Hexadentate poly-Lewis acids based on the bowl-shaped tribenzotriquinacene”. Dalton Transactions (2024).
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