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Can Immobilization of an Inactive Iron Species Switch on Catalytic Activity in the Suzuki Reaction?

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Abstract

We examined the synthetic and catalytic claims that immobilization of an Fe-PNP pincer complex (1) on an amine-modified graphene oxide support yields a useful heterogeneous catalyst for the Suzuki biaryl cross-coupling reaction. Complex 1 is not formed under the reported conditions, rather the iron sulfate heptahydrate starting material (melanterite) undergoes partial dehydration to give iron sulfate tetrahydrate (rozenite). Neither rozenite nor melanterite are catalytically competent.

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Acknowledgements

We thank the Engineering and Physical Sciences Research Council (EPSRC) for provision of a PhD studentship (S.B.T.).

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  1. School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, UK

    Sanita B. Tailor & Robin B. Bedford

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  1. Sanita B. Tailor
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  2. Robin B. Bedford
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Correspondence to Robin B. Bedford.

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Tailor, S.B., Bedford, R.B. Can Immobilization of an Inactive Iron Species Switch on Catalytic Activity in the Suzuki Reaction?. Catal Lett 150, 963–968 (2020). https://doi.org/10.1007/s10562-019-02978-2

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