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Green-light Cerium Photocatalysis enabled by Pyridine N-oxide Ligands

10 April 2025, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

We report pyridine N-oxides as neutral ligands in cerium photocatalysis. By using those neutral ligands, photoactive Ce(IV)-species are generated, that show an extensive bathochromic shift compared to previously employed cerium-based complexes. This allows the effective utilization of green light in the redox-neutral CH-hydrazination of small molecules under very mild photocatalytic conditions.

Keywords

pyridine N-oxide
photocatalysis
CH-hydrazination

Supplementary materials

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Description
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Supporting Information
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Synthesis protocols, compound characterization data, copies of NMR spectra
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Supplementary weblinks

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NMR FID data
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primary NMR FID data
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Version History

Apr 10, 2025 Version 1

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The content is available under CC BY 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2025-1g91p
D O I: 10.26434/chemrxiv-2025-1g91p [opens in a new tab]

Funding

Deutsche Forschungsgemeinschaft
TRR 325–444632635

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

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