Fe<sub>3</sub>O<sub>4</sub>@Sap/Cu(<scp>ii</scp>): an efficient magnetically recoverable green nanocatalyst for the preparation of acridine and quinazoline derivatives in aqueous media at room temperature
作者:Milad Kazemnejadi、Mohammad Ali Nasseri、Safoora Sheikh、Zinat Rezazadeh、Seyyedeh Ameneh Alavi Gol
DOI:10.1039/d1ra01373d
日期:——
Saponin, as a green and available phytochemical, was immobilized on the surface of magnetite nanoparticles then doped with Cu ions (Fe3O4@Sap/Cu(II)) and used as an efficient nanocatalyst for the synthesis of quinazoline and acridine derivatives, due to their high application and importance in various fields of science. Different spectroscopic and microscopic techniques were used for the catalyst characterization
皂苷作为一种绿色、可用的植物化学物质,固定在磁铁矿纳米粒子表面,然后掺杂铜离子(Fe 3 O 4 @Sap/Cu( II )),作为有效的纳米催化剂用于合成喹唑啉和吖啶衍生物,由于它们在各个科学领域的高度应用和重要性。使用不同的光谱和显微技术来表征催化剂,例如 FT-IR、XRD、FE-SEM、EDX、TEM、TGA、VSM、BET、DLS、CV 和 XPS 分析。所有表征数据都相互关联,以便准确表征催化剂的结构。该反应在少量 Fe 3 O 4 @Sap/Cu( II ) (0.42 mol%) 作为绿色催化剂的存在下在水中在短时间内进行。结果很好地表明了皂苷在解决水介质中传质问题方面的有效作用,这是水介质中和非均相介质存在下许多有机反应所面临的挑战。该催化剂具有高催化活性,并且在温和的反应条件下,在短反应时间(小于 1 小时)内,所有喹唑啉(产率 68-94%)和吖啶(产率 66-97%