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  Productive Alkyne Metathesis with “Canopy Catalysts” Mandates Pseudorotation

Haack, A., Hillenbrand, J., Leutzsch, M., van Gastel, M., Neese, F., & Fürstner, A. (2021). Productive Alkyne Metathesis with “Canopy Catalysts” Mandates Pseudorotation. Journal of the American Chemical Society, 143(15), 5643-5648. doi:10.1021/jacs.1c01404.

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ja1c01404_si_001-1.pdf (Supplementary material), 7MB
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 Creators:
Haack, Alexander1, Author              
Hillenbrand, Julius2, Author              
Leutzsch, Markus3, Author              
van Gastel, Maurice1, Author              
Neese, Frank4, Author              
Fürstner, Alois2, Author              
Affiliations:
1Research Group van Gastel, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_2541713              
2Research Department Fürstner, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445584              
3Service Department Farès (NMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445623              
4Research Department Neese, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_2541710              

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 Abstract: Molybdenum alkylidyne complexes of the “canopy catalyst” series define new standards in the field of alkyne metathesis. The tripodal ligand framework lowers the symmetry of the metallacyclobutadiene complex formed by [2 + 2] cycloaddition with the substrate and imposes constraints onto the productive [2 + 2] cycloreversion; pseudorotation corrects this handicap and makes catalytic turnover possible. A combined spectroscopic, crystallographic, and computational study provides insights into this unorthodox mechanism and uncovers the role that metallatetrahedrane complexes play in certain cases.

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Language(s): eng - English
 Dates: 2021-04-072021-04-21
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/jacs.1c01404
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Title: Journal of the American Chemical Society
  Other : JACS
  Abbreviation : J. Am. Chem. Soc.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 143 (15) Sequence Number: - Start / End Page: 5643 - 5648 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870