Hussain-Khil Noorullah, Ghorbani-Choghamarani Arash, Mohammadi Masoud
Department of Chemistry, Faculty of Science, Ilam University, Ilam, Iran.
Department of Organic Chemistry, Bu-Ali Sina University, Hamedan, 6517838683, Iran.
Sci Rep. 2021 Aug 2;11(1):15657. doi: 10.1038/s41598-021-94846-6.
A highly efficient and stable heterogeneous coordination polymer (CP) was successfully prepared by hydrothermal combination of silver and 4,6-diamino-2-pyrimidinethiol. The prepared coordination polymer was characterized by FT-IR, XRD, TGA, SEM, EDX, X-ray mapping and Nitrogen adsorption-desorption analysis. The prepared Ag-CP exhibit excellent catalytic activity in multicomponent Hantzsch synthesis of polyhydroquinolines under mild reaction conditions in relatively short reaction times. The heterogeneity of the catalyst was confirmed by the hot filtration test; also, the catalyst was reused for at least four times under the optimized reaction conditions without any significant loss of its catalytic activity.
通过银与4,6-二氨基-2-嘧啶硫醇的水热组合成功制备了一种高效稳定的非均相配位聚合物（CP）。通过傅里叶变换红外光谱（FT-IR）、X射线衍射（XRD）、热重分析（TGA）、扫描电子显微镜（SEM）、能谱分析（EDX）、X射线映射和氮吸附-解吸分析对制备的配位聚合物进行了表征。所制备的Ag-CP在温和反应条件下相对较短的反应时间内，对多组分汉茨希合成多羟基喹啉表现出优异的催化活性。通过热过滤试验证实了催化剂的非均相性；此外，在优化的反应条件下，该催化剂可重复使用至少四次，且其催化活性没有任何显著损失。
