The present work aims to fabricate ultrasonic assisted microencapsulation of zinc triflate based on polyethersulfone (PES) as an efficient regioselective catalyst for Friedel-Crafts acylation.

The catalyst was reused for consequent reactions. Ultrasound displayed an important role on selectivity for Friedel-Crafts acylation reaction due to the controlled release of Lewis acid in addition to its cavitational effect that decreases the reaction time and increases the yield of the reaction.

中文翻译：

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超声辅助三氟甲磺酸锌在聚醚砜中的微囊封装，作为弗瑞德-克拉夫茨酰化反应的有效区域选择性催化剂

本工作旨在制造基于聚醚砜（PES）的三氟甲磺酸锌的超声辅助微囊化技术，作为弗瑞德-克拉夫茨酰化反应的有效区域选择性催化剂。

将该催化剂再用于随后的反应。由于路易斯酸的受控释放以及缩短了反应时间并增加反应收率的空化作用，超声对弗里德尔-克拉夫茨酰化反应的选择性发挥了重要作用。