Introduction: In this study, the synthesis of azo-linked acridine by the reaction of dimedone and synthesized diazoaryl-(2-amino-5-(phenyl)methanone using Ag2S/RHA-MCM-41nanocomposite is reported.

Materials and Methods: The synthesized catalyst was characterized by FT-IR, XRD, and SEM. According to the obtained results, Ag₂S/RHA-MCM-41 nanocomposite exhibited high activity in the synthesis of azo-acridine derivatives based on desirable yields and reaction time. Products were prepared in 1.5-2 h and with 88-93% yield. In all the reactions, the catalyst could be easily removed and reused, and its catalytic activity was maintained after five uses and did not decrease significantly. The structures of all newly synthesized products were characterized by spectroscopic spectra (FT-IR, ¹H NMR, ¹³C NMR) and elemental analyses.

Results and Discussion: The results of the study showed that ionic liquid [DBU]OAc (entry 8) and MCM- 41/Ag2S-RHA nanocomposite (entry 8) possessed better efficiency and shorter time than other reaction conditions.

Conclusion: In this study, new azo-linked acridine derivatives were synthesized by the reaction of different azo derivatives and dimedone using MCM-41/Ag2S-RHA nanocomposite, and the reaction products were obtained in 1.5-2 h with an efficiency of 88-93%. The short reaction time and high efficiency of the obtained products indicated the high efficiency of this method. In all the reactions, MCM-41/Ag2S-RHA nanocomposite could be easily removed and reused. Its catalytic activity was maintained in the sample reaction after five runs and did not decrease significantly.

介绍：在这项研究中，报道了使用 Ag2S/RHA-MCM-41 纳米复合材料通过二甲酮和合成的重氮芳基-（2-氨基-5-（苯基）甲酮反应合成偶氮连接的吖啶）。

材料和方法：合成的催化剂通过FT-IR、XRD和SEM进行表征。根据获得的结果，基于理想的产率和反应时间，Ag ₂ S/RHA-MCM-41 纳米复合材料在偶氮吖啶衍生物的合成中表现出高活性。产物在 1.5-2 小时内制备，产率为 88-93%。在所有反应中，催化剂都可以很容易地去除和重复使用，使用五次后其催化活性保持不变，没有明显下降。所有新合成产物的结构均通过光谱（FT-IR、¹ H NMR、¹³ C NMR）和元素分析表征。

结果与讨论：研究结果表明，离子液体[DBU]OAc（条目8）和MCM-41/Ag2S-RHA纳米复合材料（条目8）比其他反应条件具有更好的效率和更短的时间。

结论：本研究采用MCM-41/Ag2S-RHA纳米复合材料，通过不同的偶氮衍生物与二甲酮反应合成了新的偶氮连接吖啶衍生物，反应产物在1.5-2h内得到，效率为88- 93%。所得产物反应时间短、效率高，表明该方法的效率高。在所有反应中，MCM-41/Ag2S-RHA 纳米复合材料可以很容易地去除和重复使用。其催化活性在五次运行后在样品反应中保持不变并且没有显着降低。