Kalantari Fatemeh, Ramazani Ali, Poor Heravi Mohammad Reza, Aghahosseini Hamideh, Ślepokura Katarzyna
Department of Chemistry, University of Zanjan, Zanjan 4537138791, Iran.
Department of Biotechnology, Research Institute of Modern Biological Techniques, University of Zanjan, Zanjan 4537138791, Iran.
Inorg Chem. 2021 Oct 4;60(19):15010-15023. doi: 10.1021/acs.inorgchem.1c02470. Epub 2021 Sep 17.
A novel catalyst has been afforded by attaching of a Cu(proline) complex to magnetic nanoparticles through cheap, simple, and readily available chemicals. This catalyst was characterized by Fourier transform infrared, energy-dispersive X-ray, X-ray diffraction, vibrating-sample magnetometry, transmission electron microscopy, scanning electron microscopy, and inductively coupled plasma analyses. The catalytic activity of the FeO@NH@TCT@HProCu nanocatalyst was investigated in a green and effective synthesis of pyran derivatives in high yields by applying three-component reactions of malononitrile, dimedone, and aldehydes in ethanol. Conversion was high under optimal conditions. The obtained nanocatalyst could be easily separated from the mixture of the reaction and was recyclable nine times via a simple magnet without considerable reduction of its catalytic efficiency. Operational simplicity, high product yields, environmental friendliness, ecofriendliness, economical processing, and easy workup are the features of this methodology.
通过使用廉价、简单且易于获得的化学物质将铜（脯氨酸）配合物附着到磁性纳米颗粒上，得到了一种新型催化剂。该催化剂通过傅里叶变换红外光谱、能量色散X射线光谱、X射线衍射、振动样品磁强计、透射电子显微镜、扫描电子显微镜和电感耦合等离子体分析进行了表征。通过在乙醇中使丙二腈、二氢嘧啶酮和醛进行三组分反应，研究了FeO@NH@TCT@HProCu纳米催化剂在绿色高效合成吡喃衍生物中的催化活性，产率较高。在最佳条件下转化率很高。所得到的纳米催化剂可以很容易地从反应混合物中分离出来，并且通过简单的磁铁可循环使用九次，而其催化效率没有显著降低。操作简单、产品产率高、环境友好、生态友好、经济加工和后处理容易是该方法的特点。
