Polymer-Supported Bis-1,2,4-triazolium Ionic Tag Framework for an Efficient Pd(0) Catalytic System in Biomass Derived γ‑Valerolactone

A resin-bound 1,2,4-triazolium ionic tag has been used as support for the preparation of solid palladium nanoparticles (Pd(0)-POLI-TAG-Pd). Owing to the pincer-type architecture of the triazolium ligand, the stabilization of a high amount of palladium nanoparticles (16 wt %) has been possible. The c...

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Bibliographic Details
Published in:ACS sustainable chemistry & engineering 2019-04, Vol.7 (7), p.6939-6946
Main Authors: Valentini, Federica, Mahmoudi, Hamed, Bivona, Lucia Anna, Piermatti, Oriana, Bagherzadeh, Mojtaba, Fusaro, Luca, Aprile, Carmela, Marrocchi, Assunta, Vaccaro, Luigi
Format: Article
Language:English
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Summary:A resin-bound 1,2,4-triazolium ionic tag has been used as support for the preparation of solid palladium nanoparticles (Pd(0)-POLI-TAG-Pd). Owing to the pincer-type architecture of the triazolium ligand, the stabilization of a high amount of palladium nanoparticles (16 wt %) has been possible. The catalytic system has been fully characterized and used in low amounts (i.e., 0.1 mol % palladium loading) in representative Heck–Mizoroki cross-coupling processes. A negligible release of the metal was demonstrated, and a high activity was obtained over more runs. Besides, the protocol has been optimized for the use of safe biomass-derived γ-valerolactone reaction medium.
ISSN:2168-0485
2168-0485
DOI:10.1021/acssuschemeng.8b06502