was designed by encapsulating SnO2 on nano-Fe3O4-DOPA. After the successful characterization of the synthesized catalyst by FT-IR, SEM, TEM, EDX, TGA, powder XRD, XPS, VSM and ICP-AES, it was employed in the greener synthesis of dihydroquinazolinone derivatives using water as a solvent. Nano-Fe3O4-DOPA-SnO2 was found to have high TON and TOF and showed high catalytic activity which is validated by good
                                    通过将SnO 2包覆在纳米Fe 3 O 4 -
DOPA上,设计了一类新型的非均相磁性可分离纳米催化剂。在通过FT-IR,
SEM,
TEM,EDX,TGA,粉末XRD,XPS,VSM和ICP-AES成功表征合成的催化剂后,将其用于以
水为溶剂的绿色绿色二氢
喹唑啉酮衍
生物。纳米Fe 3 O 4 -
DOPA-SnO 2发现具有较高的TON和TOF并显示出高的催化活性,这通过所需产物的良好至优异的产率得到证实。本方案的应用也用于合成双-二氢
喹唑啉酮化合物,该化合物在一个步骤中一步就形成了六个新的C–N键,两个新的C–C键,两个新的立体中心和两个新的二氢
喹唑啉酮部分。时间较短。催化剂易于分离和重复使用(五次),底物变化,所需产物的选择性,较短的反应时间,较绿色的反应介质(
水),无柱色谱分离,克规模的反应和简便的后处理程序,使该程序对环境友好且可持续。此外,