Selective production of methylindan and tetralin with xylose or hemicellulose

作者：Zhufan Zou, Zhenjie Yu, Weixiang Guan, Yanfang Liu, Yumin Yao, Han Yang, Guangyi Li, Aiqin Wang, Yu Cong, Xinmiao Liang, Tao Zhang, Ning Li · 发表于：Nature Communications · 年份：2024 · DOI：10.1038/s41467-024-48101-x · 被引用次数：19 · 研究领域：Catalysis for Biomass Conversion、Biofuel production and bioconversion、Microbial Metabolic Engineering and Bioproduction

Indan and tetralin are widely used as fuel additives and the intermediates in the manufacture of thermal-stable jet fuel, many chemicals, medicines, and shockproof agents for rubber industry. Herein, we disclose a two-step route to selectively produce 5-methyl-2,3-dihydro-1H-indene (abbreviated as methylindan) and tetralin with xylose or the hemicelluloses from agricultural or forestry waste. Firstly, cyclopentanone (CPO) was selectively formed with ~60% carbon yield by the direct hydrogenolysis of xylose or hemicelluloses on a non-noble bimetallic Cu-La/SBA-15 catalyst. Subsequently, methylindan and tetralin were selectively produced with CPO via a cascade self-aldol condensation/rearrangement/aromatization reaction catalyzed by a commercial H-ZSM-5 zeolite. When we used cyclohexanone (another lignocellulosic cycloketone) in the second step, the main product switched to dimethyltetralin. This work gives insights into the selective production of bicyclic aromatics with lignocellulose.