A fine-tuned mordenite was prepared to overcome the low selectivity of tert-amyl anthracene production in the direct alkylation of anthracene. Herein, a series of boric acid-modified Fe-Zr mordenite materials were prepared, and tert-amyl anthracene was smoothly and efficiently obtained over these catalysts. The boron sites in modified catalyst promoted the alcohol dehydrogenation, which benefited the reaction conversion. Moreover, the existence of Brønsted and Lewis acid sites was the key in alkylation reaction, making 1.0B-Fe-Zr/MOR good reactivity (Conv. 47.8%, Sel. 91.4%). Calculated results correlated the products properties with catalyst structures, verifying that boric acid-modified Fe-Zr/MOR was a successful shape-selective catalyst. The present work opens a new frontier for a sustainable and high-selective method to process anthracene alkylation.

Graphical abstract

中文翻译：

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硼酸改性 Fe-Zr 丝光沸石催化剂与叔戊醇烷基化蒽

制备微调丝光沸石以克服蒽直接烷基化中叔戊基蒽生产选择性低的问题。本文制备了一系列硼酸改性的Fe-Zr丝光沸石材料，并在这些催化剂上顺利高效地得到叔戊基蒽。改性催化剂中的硼位点促进了醇脱氢，有利于反应转化。此外，Brønsted 和 Lewis 酸位点的存在是烷基化反应的关键，使得 1.0B-Fe-Zr/MOR 具有良好的反应性（Conv. 47.8%, Sel. 91.4%）。计算结果将产物性质与催化剂结构相关联，证实硼酸改性的 Fe-Zr/MOR 是一种成功的择形催化剂。

图形概要