Abstract

In this study, the surface of silica-coated magnetic nanoparticles (Fe₃O₄@SiO₂) were successfully functionalized by an organic ligand of 1, 4-Diazabicyclo[2.2.2]octane (DABCO)-sulfonic acid and used as a highly efficient catalyst for the synthesis of 4-aryl-NH-1, 2, 3-triazoles from the benzyl alcohol derivatives, nitromethane and sodium azide in ethanol. Furthermore, this catalyst could be recovered and reused five times without noticeable loss of activity.

Graphic Abstract

Fe₃O₄@SiO₂@TCT-DABCO-SO₃H nanoparticles were successfully synthesized and used as a novel, recyclable, efficient and heterogeneous catalyst for the synthesis of 4-aryl-NH-1, 2, 3-triazoles.

中文翻译：

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固定在磁性Fe 3 O 4 @SiO 2纳米粒子上的1，1，4-二氮杂双环[2.2.2]辛烷磺酸：一锅合成4-芳基-NH-1，2，3-的新型可回收催化剂三唑

摘要

在这项研究中，二氧化硅包覆的磁性纳米粒子（Fe ₃ O ₄ @SiO ₂）的表面已通过1，4-二氮杂双环[2.2.2]辛烷（DABCO）-磺酸的有机配体成功地官能化，并用作表面活性剂。由苯甲醇衍生物，硝基甲烷和叠氮化钠在乙醇中合成4-芳基-NH-1、2,3-三唑的高效催化剂。此外，该催化剂可被回收并重复使用五次而没有明显的活性损失。

图形摘要

成功地合成了Fe ₃ O ₄ @SiO ₂ @ TCT-DABCO-SO ₃ H纳米粒子，并将其用作合成4-芳基-NH-1、2、3-三唑的新型，可回收，高效且非均相的催化剂。