Here, an innovative approach to produce renewable pentadiene is described: converting levulinic acids to 1,4-pentanediol, followed by dehydration to pentadiene affording 77.5% yield over a multifunctional Ce/ZrSi catalyst. Impressively, a synergistic effect between Ce and ZrSi was disclosed for the direct dehydration, and further transformation was relatively stimulated from the undesirable product 2-methyltetrahydrofuran toward pentadiene. Moreover, the direct dehydration took priority over the pentadiene synthesis among the two reaction pathways.

中文翻译：

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多功能 Ce/ZrSi 催化剂将乙酰丙酸衍生的 1,4-戊二醇协同转化为可再生戊二烯

在这里，描述了一种生产可再生戊二烯的创新方法：将乙酰丙酸转化为 1,4-戊二醇，然后脱水为戊二烯，在多功能 Ce/ZrSi 催化剂上提供 77.5% 的产率。令人印象深刻的是，Ce 和 ZrSi 之间的协同作用被揭示用于直接脱水，并且相对刺激了从不需要的产物 2-甲基四氢呋喃向戊二烯的进一步转化。此外，在两种反应途径中，直接脱水优先于戊二烯合成。