Issue 8, 2018

Catalytic oxidative coupling promoted by bismuth TEMPOxide complexes

Abstract

Bismuth(III) TEMPOxide compounds have been synthesized from the coupling of Bi(II) species with the TEMPO˙ radical. The steric profile of the supporting bis(amido)disiloxane ligand promotes different fluxional behaviour in solution, and DFT calculations suggest variation in the Bi–O bond character. These compounds are active catalysts for oxidative coupling of TEMPO and silane substrates, believed to proceed via metathesis of Bi–O and Si–H bonds followed by decomposition of bismuth-hydride intermediate species.

Graphical abstract: Catalytic oxidative coupling promoted by bismuth TEMPOxide complexes

Supplementary files

Article information

Article type
Communication
Submitted
01 nov 2017
Accepted
03 jan 2018
First published
03 jan 2018

Chem. Commun., 2018,54, 916-919

Catalytic oxidative coupling promoted by bismuth TEMPOxide complexes

R. J. Schwamm, M. Lein, M. P. Coles and C. M. Fitchett, Chem. Commun., 2018, 54, 916 DOI: 10.1039/C7CC08402A

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