Lignocellulosic biomass can be converted to significant platform molecule 5-
hydroxymethylfurfural (HMF), from which one can envision a number of biofuels and
chemicals through either chemical or biological conversions. Chemoselective hydrogenation
is one of the important pathways for the upgrading of HMF into furanyl diols consisting
of 2,5-bis(hydroxymethyl)furan (BHMF) and 2,5-bis(hydroxymethyl)tetrahydrofuran
(BHMTHF). BHMF and BHMTHF are all-purpose intermediates for the manufacture of
chemicals, fuels, and functional materials. In this context, we comprehensively summarized
the studies on the chemoselective hydrogenation of HMF into furanyl diols in terms
of different H-donors, including molecular H2, alcohols, formic acid, and other alternative
H-donors. Through the systematic survey of the previous works, a feasible research direction
is discussed for the production of furanyl diols.
Keywords: Hydrogenation, 5-hydroxymethylfurfural, furanyl diols, 2, 5-bis(hydroxymethyl)furan, H-donors, formic acid, alcohols.
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