Ultrasound assisted microencapsulation of zinc triflate in polyethersulfone as an efficient regioselective catalyst for Friedel-Crafts acylation reaction

被引：5
|
作者：
Alamry, Khalid A. [1 ]
Saleh, Tamer S. [2 ,3 ]
Mekky, Ahmed E. M. [2 ,4 ]
Hussein, Mahmoud A. [1 ,5 ]
机构：
[1] King Abdulaziz Univ, Fac Sci, Chem Dept, POB 80203, Jeddah 21589, Saudi Arabia
[2] Univ Jeddah, Fac Sci, Chem Dept, POB 80327, Jeddah 21589, Saudi Arabia
[3] Natl Res Ctr, Green Chem Dept, El Buhouth St, Cairo 12622, Egypt
[4] Cairo Univ, Chem Dept, Fac Sci, Giza, Egypt
[5] Assiut Univ, Fac Sci, Chem Dept, Polymer Chem Lab 122, Assiut, Egypt
来源：
POLYMER | 2020年 / 189卷
关键词：
Zinc triflate; Friedel-Crafts (FC); Ultrasound; Cavitation; Microencapsulation; Polyethersulfone (PES); CARBOXYLIC-ACIDS; ORGANIC-SYNTHESIS; METAL; COMPLEXES; MICROCAPSULES; ENCAPSULATION; SCANDIUM; RELEASE; IMPROVEMENT; PERFORMANCE;
D O I：
10.1016/j.polymer.2019.122123
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
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.
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页数：9
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