Catalytic Oxidative Coupling Promoted by Bismuth TEMPOxide Complexes

Overview

Journal Chem Commun (Camb)

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2018 Jan 11

PMID 29318242

Citations 16

Authors

R J Schwamm

M Lein

M P Coles

C M Fitchett

Affiliations

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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.

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