Department of Chemistry, University of California Davis, 1 Shields Avenue, Davis, CA 95616 (USA).
Angew Chem Int Ed Engl. 2014 Feb 10;53(7):1854-7. doi: 10.1002/anie.201308143. Epub 2014 Jan 29.
Dehydration of biomass-derived levulinic acid under solid acid catalysis and treatment of the resulting angelica lactone with catalytic K2 CO3 produces the angelica lactone dimer in excellent yield. This dimer serves as a novel feedstock for hydrodeoxygenation, which proceeds under relatively mild conditions with a combination of oxophilic metal and noble metal catalysts to yield branched C7 -C10 hydrocarbons in the gasoline volatility range. Considering that levulinic acid is available in >80 % conversion from raw biomass, a field-to-tank yield of drop-in, cellulosic gasoline of >60 % is possible.
在固体酸催化下对生物质衍生的戊二酸脱水，并使用催化 K2CO3 处理所得的当归内酯，可高产率得到当归内酯二聚体。该二聚体可用作新型加氢脱氧原料，在亲氧金属和贵金属催化剂的组合作用下，在相对温和的条件下进行反应，可得到支链 C7-C10 烃类，这些烃类在汽油挥发范围内。考虑到从原始生物质中可获得超过 80%转化率的戊二酸，因此有可能实现超过 60%的田间到油箱的转化率，生产出可直接使用的纤维素汽油。
