Selective hydrogenation of HMF to DHMF with Ru-PNP complexes in ionic liquids.

ABSTRACT: The catalytic hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-dihydroxymethylfuran (DHMF) represents a promising pathway for the valorisation of lignocellulosic-derived biomass feedstock. This study investigates the use of Ru-PNP complexes as (pre)catalysts to achieve efficient and highly selective hydrogenation of HMF in ionic liquids (ILs) as green reaction media under mild reaction conditions. Our results indicate that ^iPrRu-MACHO leads to excellent conversion and yield (up to 99%) of HMF to DHMF using 1-butyl-3-methylimidazolium acetate (BMIM OAc). The analogous cationic Ru-PNP complex bearing acetonitrile as ancillary ligand and hexafluorophosphate (PF₆ ^-) as counterion also shows high catalytic activity (up to 99% conversion) in BMIM OAc under m

SUBMITTER: Nori V 

PROVIDER: S-EPMC12015935 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature