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  N‑Arylpyridiniophosphines: Synthesis, Structure, and Applications in Au(I) Catalysis

Tinnermann, H., Nicholls, L. D. M., Johannsen, T., Wille, C., Golz, C., Goddard, R., et al. (2018). N‑Arylpyridiniophosphines: Synthesis, Structure, and Applications in Au(I) Catalysis. ACS Catalysis, 8(11), 10457-10463. doi:10.1021/acscatal.8b03271.

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 Creators:
Tinnermann, Hendrik1, Author
Nicholls, Leo D. M.1, Author
Johannsen, Tim1, Author
Wille, Christian2, Author           
Golz, Christopher1, Author
Goddard, Richard3, Author           
Alcarazo, Manuel1, Author
Affiliations:
1Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany, ou_persistent22              
2Research Department Fürstner, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445584              
3Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445625              

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Free keywords: Au(I)-catalysis; Buchwald phosphines; cycloisomerizations; ligand design; α-cationic phosphines
 Abstract: The synthesis and characterization through NMR and X-ray
crystallography of a series of N-arylpyridiniophosphines and their
corresponding Au(I)-derivatives are reported. Because of their acceptor
properties, pyridiniophosphines efficiently enhance the electrophilicity of
the Au atom in the complexes they form. In our study, this is translated
into higher reactivity of the corresponding Au catalysts, which is
demonstrated in two mechanistically differentiated cycloisomerizations.
Moreover, the steric protection and probably also the electronic
stabilization provided by the N-aryl substituents make the active Au-species
more robust and slow down its rate of decay. This allows for an
appreciable reduction of the catalyst loadings.

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Language(s): eng - English
 Dates: 2018-08-162018-10-162018-11-02
 Publication Status: Published online
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acscatal.8b03271
 Degree: -

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Title: ACS Catalysis
  Abbreviation : ACS Catal.
Source Genre: Journal
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Publ. Info: Washington, DC : ACS
Pages: - Volume / Issue: 8 (11) Sequence Number: - Start / End Page: 10457 - 10463 Identifier: ISSN: 2155-5435
CoNE: https://pure.mpg.de/cone/journals/resource/2155-5435