Ruthenium−p-cymene complexes with acylthiourea, and its heterogenized form on graphene oxide act as catalysts for the synthesis of quinoxaline derivatives
作者:Dharmalingam Sindhuja、Mayakrishnan Gopiraman、Punitharaj Vasanthakumar、Nattamai Bhuvanesh、Ramasamy Karvembu
DOI:10.1016/j.jorganchem.2021.121933
日期:2021.9
Synthesis of a series of half-sandwich Ru(II) complexes (1-5) containing acylthiourea ligand is reported herein. All the Ru(II) complexes were well characterized by analytical and spectroscopic (UV-Vis, FT-IR, NMR and mass spectrometry) methods. Molecular structures of two (2 and 3) of the complexes were confirmed by single crystal X-ray diffraction, and the complexes adopted pseudo-octahedral geometry around
一系列半夹心的Ru(II)络合物(的合成1 - 5)含有酰基硫脲配体本文中所报道。所有 Ru(II) 配合物都通过分析和光谱(UV-Vis、FT-IR、NMR 和质谱)方法进行了很好的表征。通过单晶X射线衍射证实了两种(2和3)配合物的分子结构,并且配合物在Ru周围采用伪八面体几何结构。所述Ru配合物的催化能力在从各种-2-硝基苯胺和羟基酮衍生物喹喔啉化合物的合成,评价通过转移加氢法。将活性均相催化剂负载在氧化石墨烯上使其异质化,并通过拉曼、XPS、TEM、SEM 和 ICP-OES 技术对异质等效物进行表征。测试了非均相催化剂的活性,它可以重复使用多达五个循环而没有任何活性损失。