In this study, an efficient synthesis of chromene derivatives has been described using a new organometallic catalyst including polymeric imidazolium ionic liquid functionalized Mn(III) Schiff base complex (PIL‐SB−Mn (III)). This polymeric catalyst has been prepared by a simple method and characterized completely by different techniques such as FT‐IR, H‐NMR, FE‐SEM, EDX, TGA, and ICP‐OES. The major advantages of this method are the reusability of the catalyst, use of water as an environmental friendly solvent and easy work up procedure. The reused catalyst has been characterized by FT‐IR and EDX analysis which heterogeneous nature of this catalyst has been confirmed successfully.

中文翻译：

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高度纯的聚离子液体功能化Mn（III）Schiff碱催化剂，用于绿色合成二甲苯衍生物

在这项研究中，已描述了使用新型有机金属催化剂（包括聚合的咪唑鎓离子液体官能化的Mn（III）Schiff碱配合物（PIL-SB-Mn（III）））可有效合成亚甲基衍生物。该聚合催化剂是通过简单的方法制备的，并通过诸如FT-IR，H-NMR，FE-SEM，EDX，TGA和ICP-OES等不同技术完全表征。该方法的主要优点是催化剂的可重复使用性，使用水作为环境友好的溶剂以及易于后处理的过程。通过FT-IR和EDX分析对可重复使用的催化剂进行了表征，已成功证实了该催化剂的异质性。