The aqueous room temperature mono-dehydration of sugar alcohols (D-sorbitol and D-mannitol) was conducted using functionalized yttrium oxide nanocatalysts prepared via sol-gel methods. Materials exhibited high selectivity to mono-dehydration products. Solvent and catalyst effects were also investigated and discussed. The introduction of titanium into the yttrium oxide framework would decrease both substrate conversion and mono-dehydration efficiency. In addition, studies of the catalytic mechanism indicate high mono-dehydration efficiency may come from the stability of the formed intermediate during catalysis. This work provides a highly efficient and benign system for catalytic mono-dehydration of sugar alcohols.
Keywords: mechanism; mono-dehydration; room temperature catalysis; sugar alcohols; yttrium oxide.
Copyright © 2020 Yang, Jia, Fan, Cheng, Pan, Huang, Meng, Zhang, Zheng, Ma, Li, Luque and Sun.