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New nano-Fe3O4-supported Lewis acidic ionic liquid as a highly effective and recyclable catalyst for the preparation of benzoxanthenes and pyrroles under solvent-free sonication†
RSC Advances ( IF 3.9 ) Pub Date : 2018-10-18 00:00:00 , DOI: 10.1039/c8ra04893b Hai Truong Nguyen 1 , Ngoc-Phuong Thi Le 1 , Duy-Khiem Nguyen Chau 1 , Phuong Hoang Tran 1
RSC Advances ( IF 3.9 ) Pub Date : 2018-10-18 00:00:00 , DOI: 10.1039/c8ra04893b Hai Truong Nguyen 1 , Ngoc-Phuong Thi Le 1 , Duy-Khiem Nguyen Chau 1 , Phuong Hoang Tran 1
Affiliation
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A novel magnetic nanomaterial-immobilized Lewis acidic ionic liquid was successfully synthesized by the covalent embedding of 3-(3-(trimethoxysilyl)propyl)-1H-imidazol-3-ium chlorozincate (II) ionic liquid to the surface of Fe3O4 nanoparticles. The material was then characterized by FT-IR, SEM, TEM, TGA, ICP-OES, Raman, and EDS. Its performance as a new-generation Lewis acidic catalyst was also examined on the ultrasound-mediated synthesis of benzoxanthenes and pyrroles. Upon completion, the catalyst was simply recovered by an external magnet for multiple reuses without significant lessening of catalytic performance.
中文翻译：
新型纳米 Fe3O4 负载的路易斯酸性离子液体作为高效且可回收的催化剂，用于在无溶剂超声下制备苯并氧杂蒽和吡咯†
将3-(3-(三甲氧基甲硅烷基)丙基)-1 H-咪唑-3-氯锌酸盐( II )离子液体共价嵌入Fe 3 O表面，成功合成了一种新型磁性纳米材料固定化Lewis酸性离子液体4纳米粒子。然后通过 FT-IR、SEM、TEM、TGA、ICP-OES、拉曼和 EDS 对材料进行表征。其作为新一代路易斯酸性催化剂的性能也在超声介导的苯并氧杂蒽和吡咯合成中进行了检验。完成后，通过外部磁铁简单地回收催化剂以进行多次重复使用，而不会显着降低催化性能。
更新日期：2018-10-18
中文翻译：
新型纳米 Fe3O4 负载的路易斯酸性离子液体作为高效且可回收的催化剂，用于在无溶剂超声下制备苯并氧杂蒽和吡咯†
将3-(3-(三甲氧基甲硅烷基)丙基)-1 H-咪唑-3-氯锌酸盐( II )离子液体共价嵌入Fe 3 O表面，成功合成了一种新型磁性纳米材料固定化Lewis酸性离子液体4纳米粒子。然后通过 FT-IR、SEM、TEM、TGA、ICP-OES、拉曼和 EDS 对材料进行表征。其作为新一代路易斯酸性催化剂的性能也在超声介导的苯并氧杂蒽和吡咯合成中进行了检验。完成后，通过外部磁铁简单地回收催化剂以进行多次重复使用，而不会显着降低催化性能。
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