Selective Excitation of Pd-decorated Titania Enables Consecutive C−C Couplings and Hydrogenations under Ambient Conditions

Whitehead, Ryan Z.; Norman, Luke T.; Cull, William J.; Fernandes, Jesum Alves; Lanterna, Anabel E.

Abstract

Here, we discovered that Pd decorated TiO2 (Pd@TiO2) enables consecutive photocatalytic Sonogashira C−C coupling and hydrogenation steps by simply adjusting the excitation conditions of the reaction. We demonstrated that by-products containing iodine species generated in the first reaction step can inhibit subsequent photocatalytic processes, but they can be easily removed from solution to enable a compatible synthetic sequence for new C−C bond formation under mild reaction conditions. This work incorporates heterogeneous photocatalysts into consecutive transformations, promoting elegant reactions while meeting the demands of green chemistry.

Citation

Whitehead, R. Z., Norman, L. T., Cull, W. J., Fernandes, J. A., & Lanterna, A. E. (2023). Selective Excitation of Pd-decorated Titania Enables Consecutive C−C Couplings and Hydrogenations under Ambient Conditions. ChemCatChem, 15(21), Article e202300528. https://doi.org/10.1002/cctc.202300528

• Journal Article Type: Article
• Acceptance Date: Sep 1, 2023
• Online Publication Date: Sep 1, 2023
• Publication Date: Nov 8, 2023
• Deposit Date: Sep 4, 2023
• Publicly Available Date: Sep 2, 2024
• Journal: ChemCatChem
• Print ISSN: 1867-3880
• Electronic ISSN: 1867-3899
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 15
• Issue: 21
• Article Number: e202300528
• DOI: https://doi.org/10.1002/cctc.202300528
• Keywords: Inorganic Chemistry; Organic Chemistry; Physical and Theoretical Chemistry; Catalysis
• Public URL: https://nottingham-repository.worktribe.com/output/25061692
• Publisher URL: https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cctc.202300528