Journal
GREEN CHEMISTRY
Volume 23, Issue 16, Pages 5887-5895Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1gc01707a
Keywords
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Funding
- Universita degli Studi di Perugia
- MUR
- National Natural Science Foundation of China [21872060, 22072049]
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This study presents a simple protocol for converting urban biowaste into a catalyst support material, with the resulting catalyst showing good catalytic efficiency in Heck and Hiyama reactions. The catalyst can be integrated into a waste valorization chain within a circular economy, demonstrating its potential for sustainable use of resources.
Herein we report a simple protocol for the valorisation of a common urban biowaste. The lignocellulosic biomass obtained after the pre-treatment of pine needle urban waste is efficiently transformed into a low-cost support (PiNe) for the immobilization of Pd nanoparticles. The final Pd/PiNe heterogeneous catalyst features a small particle size (4.5 nm) and a metal loading (9.9 wt%) comparable with most commercially available and generally used counterparts. In this contribution, we tested the catalytic efficiency of the Pd/PiNe system in two representative cross-couplings, Heck and Hiyama reactions, and compared the results obtained with commercial Pd/C catalyst. The good reactivity in the biomass-derived solvent (GVL) confirms that the Pd/PiNe heterogeneous catalyst is a valid system that can be integrated into a waste valorization chain within a circular economy approach. In addition, the efficiency of the catalyst has also been extended to perform the challenging consecutive Hiyama-Heck reaction to afford differently substituted (E)-1,2-diarylethenes.
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