Current Organic Synthesis ( IF 1.7 ) Pub Date : 2020-11-30 , DOI: 10.2174/1570179417666200713175943 Shermineh Sadat Ghalehbandi 1 , Dadkhoda Ghazanfari 1 , Sayed Ali Ahmadi 1 , Enayatollah Sheikhhosseini 1
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Introduction: We developed a simple, fast and new method for the Fries rearrangement of aryl esters.
Materials and Methods: 4-Hydroxy pyridinium triflate functionalized silica is a very efficient, reusable and economically available catalyst for the Fries rearrangement in solvent-free condition and under microwave irradiation.
Results and Discussion: Also, a notable selectivity was observed in the presence of 4-hydroxy pyridinium triflate functionalized silica.
Conclusion: Selectivity, shorter reaction time, high yield, and easy work-up are advantages of this synthetic method.
中文翻译：
4-羟基吡啶鎓三氟甲磺酸盐@ SiO2纳米颗粒作为新型的高效催化芳烃酯的弗里斯重排催化剂。
简介：我们开发了一种简单，快速和新的方法来进行芳酯的Fries重排。
材料和方法：4-羟基三氟甲磺酸吡啶鎓官能化的二氧化硅是一种非常有效，可重复使用且经济可得的催化剂，可用于无溶剂条件下和微波辐射下的Fries重排。
结果与讨论：同样，在4-羟基吡啶鎓三氟甲磺酸酯官能化的二氧化硅存在下观察到显着的选择性。
结论：该合成方法具有选择性，反应时间短，收率高，后处理容易等优点。
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