Abstract

A new modified zeolite containing Fe nanoparticles loaded in zeolite X (Fe-X) has been synthesized and characterized by FT-IR, XRD, EDX and SEM techniques and its catalytic activity has been investigated in the synthesis of two series of xanthene derivatives. We have described an efficient and novel method using Fe-X as a new and reusable catalyst for the synthesis of 1,8-dioxooctahydroxanthenes and 14-aryl-14H-dibenzo[a,j]xanthenes derivatives from one-pot three-component condensation of aromatic aldehyde and dimedone or β-naphthol under solvent-free conditions. The significant advantages of the present method are high yields of products, short reaction time, easy separation of the catalyst from the reaction mixture, easy product isolation, solvent-free condition and reusability of the catalyst.

Graphic abstract

A new modified zeolite containing Fe nanoparticles loaded in zeolite X has been synthesized, characterized and applied in the synthesis of two series of xanthene derivatives.

中文翻译：

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新型纳米结构分子筛一锅法三组分合成1,8-二氧杂八氢氧杂蒽和14-芳基-14Hdi苯并[a，j]黄嘌呤

摘要

通过FT-IR，XRD，EDX和SEM技术合成了一种新型改性的含Fe纳米颗粒的Fe纳米沸石，并对其进行了表征，并研究了其在两个系列x吨衍生物的合成中的催化活性。我们已经描述了一种有效且新颖的方法，使用Fe-X作为一种新的可重复使用的催化剂，用于从一锅三组分缩合反应中合成1,8-二氧杂八氢氧杂蒽和14-芳基-14H-二苯并[ a，j ]氧杂蒽衍生物醛和二甲酮或β的含量-萘酚在无溶剂条件下。本方法的显着优点是产物的产率高，反应时间短，催化剂与反应混合物的分离容易，产物分离容易，无溶剂条件和催化剂的可重复使用性。

图形摘要

合成了一种新型的载有沸石X的含Fe纳米粒子的改性沸石，并对其进行了表征，并将其用于合成两个系列的x吨衍生物。