Hydrophosphinylation of Styrenes Catalysed by Well‐Defined s‐Block Bimetallics

Platten, Andrew W. J.; Borys, Andryj M.; Hevia, Eva (2021). Hydrophosphinylation of Styrenes Catalysed by Well‐Defined s‐Block Bimetallics. ChemCatChem, 14(5) WILEY-VCH 10.1002/cctc.202101853

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Advancing the applications of s-block heterobimetallic complexes in catalysis, we report the use of potassium magnesiate (PMDETA)2K2Mg(CH2SiMe3)4 [PMDETA=N,N,N’,N’,N’’-pentamethyldiethylenetriamine] for the catalytic hydrophosphinylation of styrenes under mild conditions. Exploiting chemical cooperation, this bimetallic approach offers greater catalytic activity and chemoselectivity than the single-metal components KCH2SiMe3 and Mg(CH2SiMe3)2. Stoichiometric studies between (PMDETA)2K2Mg(CH2SiMe3)4 and Ph2P(O)H help to elucidate the constitution of the active catalytic species, and illustrate the influence of donors on the potassium cation coordination, and how this may impact catalytic activity. Mechanistic investigations support that the rate determining step is the insertion of the olefinic substrate.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP)

UniBE Contributor:

Platten, Andrew William James, Borys-Smith, Andryj Machaelo, Hevia Freire, Eva

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry
000 Computer science, knowledge & systems

ISSN:

1867-3880

Publisher:

WILEY-VCH

Language:

English

Submitter:

Franziska Bornhauser-Rufer

Date Deposited:

08 Feb 2023 12:00

Last Modified:

08 Feb 2023 23:28

Publisher DOI:

10.1002/cctc.202101853

BORIS DOI:

10.48350/178532

URI:

https://boris.unibe.ch/id/eprint/178532

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