CuFe2O4 superparamagnetic nanoparticles were utilized as an effective recyclable heterogeneous catalyst for the synthesis of triphenylamines via the ligand-free selective ring-opening reaction of benzoxazoles or benzothiazoles with iodoarenes. The nano CuFe2O4 demonstrated noticeably higher catalytic efficiency than a series of homogeneous catalysts and heterogeneous catalysts. It was possible to separate
                                    CuFe 2 O 4超顺磁性纳米粒子被用作有效的可循环异构催化剂,用于通过
苯并恶唑或
苯并噻唑与
碘代
芳烃的无
配体选择性开环反应合成
三苯胺。与一系列均相催化剂和非均相催化剂相比,纳米CuFe 2 O 4表现出明显更高的催化效率。可以分离出纳米CuFe 2 O 4通过使用磁体,回收的催化剂可重复使用多次,同时可保持其活性。据我们所知,这是
苯并恶唑转化过程中非均相催化的第一个例子,而
苯并噻唑向
三苯胺的转化尚未见报道。