Acid-Base Bifunctional Zirconium N-Alkyltriphosphate Nanohybrid for Hydrogen Transfer of Biomass-Derived Carboxides

作者：Li, Hu; He, Jian; Riisager, Anders; Saravanamurugan, Shunmugavel^*; Song, Baoan; Yang, Song^*

来源：ACS Catalysis, 2016, 6(11): 7722-7727.

DOI：10.1021/acscatal.6b02431

• biofuels
• hydrogen transfer
• heterogeneous catalysis
• acid base catalyst
• mesoporous materials

Catalytic transfer hydrogenation (CTH) reactions are efficient transformation routes to upgrade biobased chemicals. Herein, we report a facile and template-free route to synthesize a series of heterogeneous nitrogen-containing alkyltriphosphonate-metal hybrids with enhancive Lewis acid and base sites, and their catalytic activity in converting biomass-derived carbonyl compounds to corresponding alcohols in 2-propanol. Particularly, a quantitative yield of furfuryl alcohol (FFA) was obtained from furfural (FUR) over organotriphosphate-zirconium hybrid (ZrPN) under mild conditions. The presence of Lewis basic sites adjacent to acid sites with an appropriate base/acid site ratio (1:0.7) in ZrPN significantly improved the yield of FFA. Mechanistic studies for the transformation of FUR to FFA with ZrPN in 2-propanol-d(8) evidently indicate CTH reaction proceeding via a direct intermolecular hydrogen transfer route. It was also found that ZrPN could catalyze isomerization of C-3-C-6 aldoses to ketoses involving intramolecular hydrogen transfer in water.

• 出版日期2016-11
• 单位贵州大学