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Synthesis and derivatisation of ceric tris(tert-butoxy)siloxides

Abstract

Metathesis reactions involving cerium(IV) complexes are generally hampered by a high tendency for reduction to the favoured trivalent state and a preference for ligand redistribution. Heteroleptic ceric Ce[OSi(OtBu)3]3Cl(thf) is easily obtained from the oxidation of Ce[OSi(OtBu)3]3(thf)2 with trityl chloride, while the absence of thf triggers formation of homoleptic Ce[OSi(OtBu)3]4. Ce[OSi(OtBu)3]3Cl(thf) enagages in salt metathesis reactions with the alkali alkoxides KOCH3 and KOtBu, forming Ce[OSi(OtBu)3]3(OR)(thf)x, but experiences an extensive reductive Iigand redistribution with the methylating agent ZnMe2.

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Publication details

The article was received on 18 Aug 2017, accepted on 11 Oct 2017 and first published on 13 Oct 2017


Article type: Communication
DOI: 10.1039/C7CC06499C
Citation: Chem. Commun., 2017, Accepted Manuscript
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    Synthesis and derivatisation of ceric tris(tert-butoxy)siloxides

    J. Friedrich, C. Maichle-moessmer and R. Anwander, Chem. Commun., 2017, Accepted Manuscript , DOI: 10.1039/C7CC06499C

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