The ۲nd National and the ۱st International Conference on Environmental Challenges: Synthesis of new magnetic Nano catalyst on Halloysite substrate and investigation of its performance in the synthesis ۱,۲,۴-triazolidine-۳-thione Derivatives

In this study, halloysite tubular nanoclay was applied as a template for the synthesis of HNTs@Arg@Fe۳O۴@HPA magnetic catalysts for the first time. Then, it was characterized with the FT-IR, XRD, TGA, EDX-Map, FE-SEM, TEM, BET, ICP-MS, and DLS techniques. The nanocomposites resulting from these studies were used in the synthesis of spiro-۲-amino-۴H-cromene and ۱,۲,۴-triazolidine-۳-thione derivatives in room temperature. The HNTs-Arg-Fe۳O۴@HPA catalyst showed promising features for the reaction, such as shorter reaction time, high product yields (about ۹۰–۹۵%), simple workup, easy removal, and reusability of the catalyst for up to ۵ times without significant loss in its efficiency. This has made the protocol sustainable and economic.

کلیدواژه ها:

catalyst ، halloysite ، magnetic nanoparticle ، ۱ ، ۲ ، ۴-triazolidine-۳-thione