Biomass-based catalytic transformation for producing hexanol,hexanediol,and their derivatives
Given the current energy crisis and concerns regarding environmental pollution,biomass is considered as a sustainable energy source that can potentially replace fossil fuels,and extensive research of biomass conversion has been directed towards the catalytic transformation of biomass into valuable hexanol and hexanediol.Hexanol and hexanediol are regarded as highly industrially valuable C6 alcohols,with hexanediol playing a crucial role in polyester industry,and hexanol being considered as a suitable alternative fuel.This review provided a comprehensive overview of biomass-derived production of hexanol and hexanediol,considering various feedstocks and catalytic approaches.It systematically outlined recent advancements in the catalytic conversion of biomass-derived compounds,such as cellulose-based substrates,5-hydroxymethylfurfural and its derivatives,as well as hexanedioic acid and its esters,into hexanol and hexanediol.The review also summarized the applications of 1,6-hexanediol in the catalytic synthesis of C6 compounds(ε-caprolactone,adipic acid,6-hydroxycaproic acid,and hexanediamine).Furthermore,it provided an outlook on the future trends in catalytic hydrogenation for producing hexanol and hexanediol,aiming to offer theoretical guidance and valuable insights for the eco-friendly and sustainable production of C6 compounds.
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