Journal
CHEMCATCHEM
Volume 13, Issue 2, Pages 695-703Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.202001376
Keywords
heterogeneous catalyst; biomass transformation; porous organic polymer; pincer complexes; levulinic acid hydrogenation
Categories
Funding
- Carbon to X Project through National Research Foundation (NRF) - Ministry of Science, ICT AMP
- Future Planning [2020M3H7A1098259, 2020M3H7A1098271]
- Korea Institute of Science and Technology (KIST)
- National Research Foundation of Korea [2020M3H7A1098259, 2020M3H7A1098271] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A novel porous organic polymer incorporating NNN pincer ligands has been prepared and characterized. A ruthenium molecular catalyst immobilized on the polymer support shows excellent catalytic performance for the hydrogenation of LA to GVL, with high selectivity and durability.
A novel porous organic polymer that incorporates NNN pincer type of ligand, i. e., 2,6-Bis(pyrazol-3-yl)pyridine, (3-bpp-POP) is prepared via solvent-knitting method. Through the characterizations, 3-bpp-POP is demonstrated to possess abundant porous structure, high surface area, and excellent thermal durability. A ruthenium molecular catalyst immobilized on the 3-bpp-POP support exhibits substantial catalytic performance for the hydrogenation of LA to GVL with an initial turnover frequency (TOF) of 1680 h(-1) and a maximum turnover number (TON) of 14762 over 24 h for LA conversion with selectivities of 91.1 % for GVL and 8.9 % for HPA. The catalyst demonstrated excellent durability during successive recycles without leaching Ru3+, which ascribe to the strong binding of pincer ligand to metal centers.
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