Issue 20, 2024

Consecutive one-pot alkyne semihydrogenation/alkene dioxygenation reactions by Pt(ii)/Cu(ii) single-chain nanoparticles in green solvent

Abstract

Heterobimetallic Pt(II)/Cu(II) single-chain polymer nanoparticles (SCNPs) were sequentially synthesized from a polymeric precursor featuring both α-diazo-β-ketoester and naked β-ketoester functional groups. Photoactivated carbene generation at λexc = 365 nm from α-diazo-β-ketoester moieities was triggered for bonding Pt(II) ions from dichloro(1,5-cyclooctadiene)Pt(II) to the polymeric precursor, whereas Cu(II) ions were subsequently incorporated via Cu(II)-(β-ketoester)2 complex formation using Cu(II) acetate. Both intrachain Pt(II) bonding and Cu(II) complexation were found to contribute to the folding of the polymeric precursor generating Pt(II)/Cu(II)-SCNPs as evidenced by infrared spectroscopy, size exclusion chromatography and dynamic light scattering. These heterobimetallic SCNPs proved highly efficient as soft nanocatalysts for the consecutive one-pot alkyne semihydrogenation/alkene dioxygenation reactions at room temperature in N-butylpyrrolidone, as a non-toxic alternative solvent to N,N-dimethylformamide.

Graphical abstract: Consecutive one-pot alkyne semihydrogenation/alkene dioxygenation reactions by Pt(ii)/Cu(ii) single-chain nanoparticles in green solvent

Supplementary files

Article information

Article type
Communication
Submitted
21 mar 2024
Accepted
29 apr 2024
First published
29 apr 2024
This article is Open Access
Creative Commons BY-NC license

Nanoscale, 2024,16, 9742-9747

Consecutive one-pot alkyne semihydrogenation/alkene dioxygenation reactions by Pt(II)/Cu(II) single-chain nanoparticles in green solvent

J. Pinacho-Olaciregui, E. Verde-Sesto, D. Taton and J. A. Pomposo, Nanoscale, 2024, 16, 9742 DOI: 10.1039/D4NR01261E

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