Differences in the Reactivity of Geminal Si-O-P and Al-O-P Frustrated Lewis Pairs

Wickemeyer L, Hartmann L, Neumann B, Stammler H-G, Mitzel NW (2022)
Chemistry - A European Journal 29(8): e202202842.

Zeitschriftenaufsatz | E-Veröff. vor dem Druck | Englisch
 
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Abstract / Bemerkung
The new oxygen-bridged geminal Si/P Frustrated Lewis Pair (FLP) tBu2 P-O-Si(C2 F5 )3 (2) is able to reversibly bind carbon dioxide at ambient temperature. We compared its reactivity towards benzil, but-3-en-2-one, nitriles and phenylacetylene to that of the Al/P FLP tBu2 P-O-AlBis2 (Bis=-CH(SiMe3 )2 ) (1). When reacted with benzil, both, 1 and 2, form the 1,2-addition product, but in the Si/P FLP 2, the second carbonyl function additionally binds to the silicon atom. With but-3-en-2-one 2 forms the 1,2-addition product, while 1 binds in 1,4-position. The reaction with acetonitrile yielded an unexpected etheneimine adduct for both systems, while only 1 reacted with tert-butylnitrile. With benzonitrile and acrylonitrile, 2 showed reversible addition to the C=N bond and 1 forms a stable adduct with benzonitrile. Solely 1 shows reactivity towards phenylacetylene affording a mixture of the CH deprotonation adduct tBu2 P(H)-O-AlBis2 (CCPh) and the FLP -C=C 1,2-addition adduct under ring formation. All compounds were characterized by multinuclear NMR spectroscopy, XRD and elemental analysis. © 2022 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.
Erscheinungsjahr
2022
Zeitschriftentitel
Chemistry - A European Journal
Band
29
Ausgabe
8
Art.-Nr.
e202202842
eISSN
1521-3765
Finanzierungs-Informationen
Open-Access-Publikationskosten wurden durch die Universität Bielefeld im Rahmen des DEAL-Vertrags gefördert.
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https://pub.uni-bielefeld.de/record/2968008

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Wickemeyer L, Hartmann L, Neumann B, Stammler H-G, Mitzel NW. Differences in the Reactivity of Geminal Si-O-P and Al-O-P Frustrated Lewis Pairs. Chemistry - A European Journal . 2022;29(8): e202202842.
Wickemeyer, L., Hartmann, L., Neumann, B., Stammler, H. - G., & Mitzel, N. W. (2022). Differences in the Reactivity of Geminal Si-O-P and Al-O-P Frustrated Lewis Pairs. Chemistry - A European Journal , 29(8), e202202842. https://doi.org/10.1002/chem.202202842
Wickemeyer, Lucas, Hartmann, Lukas, Neumann, Beate, Stammler, Hans-Georg, and Mitzel, Norbert W. 2022. “Differences in the Reactivity of Geminal Si-O-P and Al-O-P Frustrated Lewis Pairs”. Chemistry - A European Journal 29 (8): e202202842.
Wickemeyer, L., Hartmann, L., Neumann, B., Stammler, H. - G., and Mitzel, N. W. (2022). Differences in the Reactivity of Geminal Si-O-P and Al-O-P Frustrated Lewis Pairs. Chemistry - A European Journal 29:e202202842.
Wickemeyer, L., et al., 2022. Differences in the Reactivity of Geminal Si-O-P and Al-O-P Frustrated Lewis Pairs. Chemistry - A European Journal , 29(8): e202202842.
L. Wickemeyer, et al., “Differences in the Reactivity of Geminal Si-O-P and Al-O-P Frustrated Lewis Pairs”, Chemistry - A European Journal , vol. 29, 2022, : e202202842.
Wickemeyer, L., Hartmann, L., Neumann, B., Stammler, H.-G., Mitzel, N.W.: Differences in the Reactivity of Geminal Si-O-P and Al-O-P Frustrated Lewis Pairs. Chemistry - A European Journal . 29, : e202202842 (2022).
Wickemeyer, Lucas, Hartmann, Lukas, Neumann, Beate, Stammler, Hans-Georg, and Mitzel, Norbert W. “Differences in the Reactivity of Geminal Si-O-P and Al-O-P Frustrated Lewis Pairs”. Chemistry - A European Journal 29.8 (2022): e202202842.
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Dissertation, die diesen PUB Eintrag enthält
Synthese und Reaktivitätsstudien aryl- und oxoverbrückter Lewis-Paare
Wickemeyer L (2022)
Bielefeld: Universität Bielefeld.
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