Converting PFAS “Forever Chemicals” Into Valuable Compounds
Scientists develop a new method to incorporate harmful perfluoroalkenes into N-heterocyclic carbene ligands.
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Commonly known as “forever chemicals,” PFAS are notorious for persisting in the environment and in our bodies. Osaka Metropolitan University chemists may put an end to the “forever” life of PFAS with their simple yet innovative technique that converts these harmful substances into valuable compounds.
A research group led by Professor Masato Ohashi and Assistant Professor Kenichi Michigami of the Graduate School of Science at Osaka Metropolitan University has successfully synthesized ligands called fluorine-decorated N-heterocyclic carbenes (NHCs) from perfluoroalkenes, a type of PFAS (Perfluoroalkyl and Polyfluoroalkyl Substances). The NHCs developed in this study play significant roles in stabilizing unstable molecules as well as enhancing the performance of their ligated transition metal complexes.
“Our results enable the easy transformation of harmful PFAS into functional NHCs,” explained Dr. Michigami. “The versatile applications of fluorinated NHCs show potential advantages in various fields such as fluorine chemistry, organometallic chemistry, catalysis chemistry, and materials science.”
Reference: Ohashi M, Ando K, Murakami S, Michigami K, Ogoshi S. N -Heterocyclic Carbenes with Polyfluorinated Groups at the 4- and 5-Positions from [3 + 2] Cycloadditions between Formamidinates and cis -1,2-Difluoroalkene Derivatives. J Am Chem Soc. 2023;145(42):23098-23108. doi: 10.1021/jacs.3c06331
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