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首页> 外文期刊>RSC Advances >Efficient conversion of furfuryl alcohol to ethyl levulinate with sulfonic acid-functionalized MIL-101(Cr)
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Efficient conversion of furfuryl alcohol to ethyl levulinate with sulfonic acid-functionalized MIL-101(Cr)

机译：磺酸官能化的MIL-101（Cr）将糠醇有效转化为乙酰丙酸乙酯

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摘要

Catalytic ethanolysis of furfuryl alcohol (FA) to ethyl levulinate (EL) with MIL-101(Cr)-SO3H, prepared by simple one-pot hydrothermal treatment, is presented for the first time. The as-prepared catalyst with high surface area, hydrothermal and chemical stability, good dispersion, and feasible accessibility of -SO3H Bronsted acid sites was found to show superior performance to other sulfonic acid-functionalized solid catalysts. Besides the special textural properties, the obtained good catalytic activity of 79.2% EL yield and 100% FA conversion were also dependent on the density and strength of the Bronsted acid and the reaction parameters. A slight loss of catalytic activity after five consecutive recycles and the hot filtration experiment confirmed the good stability of MIL-101(Cr)-SO3H. Two coexisting reaction paths for the ethanolysis of FA to EL catalyzed by MIL-101(Cr)-SO3H were proposed, wherein 2-ethoxymethylfuran (2-EMF) was observed to be the dominant intermediate.
机译：首次提出了通过简单的一锅水热处理制备的MIL-101（Cr）-SO3H催化糠醇（FA）催化乙醇化为乙酰丙酸乙酯（EL）。发现具有高表面积，水热和化学稳定性，良好的分散性和-SO 3 H布朗斯台德酸位点的可行可达性的制备的催化剂显示出优于其他磺酸官能化的固体催化剂的性能。除了特殊的结构性质外，所获得的良好催化活性（EL产率为79.2％）和FA转化率为100％也取决于布朗斯台德酸的密度和强度以及反应参数。连续五个循环后催化活性略有下降，热过滤实验证实了MIL-101（Cr）-SO3H的良好稳定性。提出了MIL-101（Cr）-SO3H催化FA乙醇化为EL的两种共存反应途径，其中2-乙氧基甲基呋喃（2-EMF）是主要的中间体。

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