Heterogeneously catalyzed thioether metathesis by a supported Au-Pd alloy nanoparticle design based on Pd ensemble control.

Autor:	Matsuyama T; Department of Applied Chemistry, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan kyama@appchem.t.u-tokyo.ac.jp yatabe@appchem.t.u-tokyo.ac.jp +81-3-5841-7220., Yatabe T; Department of Applied Chemistry, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan kyama@appchem.t.u-tokyo.ac.jp yatabe@appchem.t.u-tokyo.ac.jp +81-3-5841-7220.; Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST) 4-1-8 Honcho, Kawaguchi Saitama 332-0012 Japan., Yabe T; Department of Applied Chemistry, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan kyama@appchem.t.u-tokyo.ac.jp yatabe@appchem.t.u-tokyo.ac.jp +81-3-5841-7220., Yamaguchi K; Department of Applied Chemistry, School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan kyama@appchem.t.u-tokyo.ac.jp yatabe@appchem.t.u-tokyo.ac.jp +81-3-5841-7220.
Jazyk:	angličtina
Zdroj:	Chemical science [Chem Sci] 2024 Jun 26; Vol. 15 (30), pp. 11884-11889. Date of Electronic Publication: 2024 Jun 26 (Print Publication: 2024).
DOI:	10.1039/d4sc02732a
Abstrakt:	C-S bond metathesis of thioethers has gained attention as a new approach to the late-stage diversification of already existing useful thioethers with molecular frameworks intact. However, direct or indirect thioether metathesis is scarcely reported, and heterogeneously catalyzed systems have not been explored. Here, we develop heterogeneously catalyzed direct thioether metathesis using a supported Au-Pd alloy nanoparticle catalyst with a high Au/Pd ratio. The Au-diluted Pd ensembles suppress the strong π-adsorption of diaryl thioethers on the nanoparticles and promote transmetalation via thiolate spill-over onto neighboring Au species, enabling an efficient direct thioether metathesis. Competing Interests: There are no conflicts to declare. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
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