Ring-Expansion Metathesis Polymerization under Confinement
P. Probst, M. Lindemann, J.R. Bruckner, B. Atwi, D. Wang, F.R. Fischer, M. Högler, M. Bauer, N. Hansen, M. Dyballa, M.R. Buchmeiser, Journal of the American Chemical Society 147 (2025) 8741–8750.
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Journal Article
| Published
| English
Author
Probst, Patrick;
Lindemann, Moritz;
Bruckner, Johanna R.;
Atwi, Boshra;
Wang, Dongren;
Fischer, Felix RichardLibreCat;
Högler, Marc;
Bauer, MatthiasLibreCat 
;
Hansen, Niels;
Dyballa, Michael;
Buchmeiser, Michael R.
;
Hansen, Niels;
Dyballa, Michael;
Buchmeiser, Michael R.Department
Abstract
The cationic molybdenum alkylidyne N-heterocyclic carbene (NHC) complex [Mo(C-p-OMeC6H4)(OCMe(CF3)2)2 (IMes)][B(ArF4] (IMes = 1,3-dimesitylimidazol-2-ylidene) was selectively immobilized inside the pores of ordered mesoporous silica (OMS) with pore diameters of 66, 56, and 28 Å and used in the ring-expansion metathesis polymerization (REMP) of cyclic olefins to yield cyclic polymers. A strong confinement effect was observed for cis-cyclooctene (cCOE), 1,5-cyclooctadiene (COD), (+)-2,3-endo,exo-dicarbomethoxynorborn-5-ene ((+)-DCMNBE), and 2-methyl-2-phenylcycloprop-1-ene (MPCP), allowing for the synthesis of low-molecular-weight cyclic polymers even at a high monomer concentration. The exclusive formation of cyclic polymers was demonstrated by matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry. Confinement also influences stereoselectivity, resulting in a pronounced increase in Z-selectivity and in an increased cis-syndiospecificity.
Publishing Year
Journal Title
Journal of the American Chemical Society
Volume
147
Issue
10
Page
8741-8750
LibreCat-ID
Cite this
Probst P, Lindemann M, Bruckner JR, et al. Ring-Expansion Metathesis Polymerization under Confinement. Journal of the American Chemical Society. 2025;147(10):8741-8750. doi:10.1021/jacs.4c18171
Probst, P., Lindemann, M., Bruckner, J. R., Atwi, B., Wang, D., Fischer, F. R., Högler, M., Bauer, M., Hansen, N., Dyballa, M., & Buchmeiser, M. R. (2025). Ring-Expansion Metathesis Polymerization under Confinement. Journal of the American Chemical Society, 147(10), 8741–8750. https://doi.org/10.1021/jacs.4c18171
@article{Probst_Lindemann_Bruckner_Atwi_Wang_Fischer_Högler_Bauer_Hansen_Dyballa_et al._2025, title={Ring-Expansion Metathesis Polymerization under Confinement}, volume={147}, DOI={10.1021/jacs.4c18171}, number={10}, journal={Journal of the American Chemical Society}, publisher={American Chemical Society (ACS)}, author={Probst, Patrick and Lindemann, Moritz and Bruckner, Johanna R. and Atwi, Boshra and Wang, Dongren and Fischer, Felix Richard and Högler, Marc and Bauer, Matthias and Hansen, Niels and Dyballa, Michael and et al.}, year={2025}, pages={8741–8750} }
Probst, Patrick, Moritz Lindemann, Johanna R. Bruckner, Boshra Atwi, Dongren Wang, Felix Richard Fischer, Marc Högler, et al. “Ring-Expansion Metathesis Polymerization under Confinement.” Journal of the American Chemical Society 147, no. 10 (2025): 8741–50. https://doi.org/10.1021/jacs.4c18171.
P. Probst et al., “Ring-Expansion Metathesis Polymerization under Confinement,” Journal of the American Chemical Society, vol. 147, no. 10, pp. 8741–8750, 2025, doi: 10.1021/jacs.4c18171.
Probst, Patrick, et al. “Ring-Expansion Metathesis Polymerization under Confinement.” Journal of the American Chemical Society, vol. 147, no. 10, American Chemical Society (ACS), 2025, pp. 8741–50, doi:10.1021/jacs.4c18171.
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