在这项工作中,固定在二氧化硅涂层的Fe 3 O 4上的铜席夫碱络合物纳米颗粒已被合成,并作为一种高效,可回收,绿色和非均相的催化剂进行研究,用于在无溶剂和温和条件下制备多取代吡咯。这种新催化剂的特征在于不同的技术,例如傅立叶变换红外(FT-IR),X射线粉末衍射(XRD),场发射扫描电子显微镜(SEM),能量色散X射线光谱法(EDX),电感耦合等离子体(ICP)和振动样品磁力法(VSM)。在上述催化剂存在下,硝基甲烷,芳基醛,1,3-二羰基化合物和胺的简单,环境单锅多组分缩合可在室温下提供标题化合物。在最后,
Nano-CoFe2O4 supported molybdenum as an efficient and magnetically recoverable catalyst for a one-pot, four-component synthesis of functionalized pyrroles
A novel magnetic nanoparticle CoFe2O4 supported Mo ([CoFe2O4@SiO2-PrNH2-Mo(acac)2]) was prepared and found to be a highly active and efficient catalyst for a one-potsynthesis of polysubstituted pyrroles viafour-componentreaction of aldehydes, amines, 1,3-dicarbonylcompounds and nitromethane. The easy recovery of the catalyst and reusability, broad substrate scopes, short reaction time, high yields
制备了新型的磁性纳米颗粒CoFe 2 O 4负载的Mo([CoFe 2 O 4 @SiO 2 -PrNH 2 -Mo(acac)2 ]),发现其是用于一锅法合成多取代基的高活性和高效催化剂。通过醛,胺,1,3-二羰基化合物和硝基甲烷的四组分反应生成吡咯。易于回收的催化剂和可重复使用性,广泛的底物范围,较短的反应时间,高收率的产品和无溶剂的条件,使该方案切实可行,对环境友好且在经济上具有吸引力。
Copper Schiff base complex immobilized on silica-coated Fe<sub>3</sub>
O<sub>4</sub>
nanoparticles: a recoverable and efficient catalyst for synthesis of polysubstituted pyrroles
In this work, a copper Schiff base complex immobilized on silica‐coated Fe3O4 nanoparticles is synthesized, and studied as a highly efficient, recyclable, green and heterogeneous catalyst for the preparation of polysubstituted pyrroles under solvent‐free and mild conditions. This new catalyst was characterized by different techniques, such as Fourier transform infrared (FT‐IR), X‐ray powder diffraction
在这项工作中,固定在二氧化硅涂层的Fe 3 O 4上的铜席夫碱络合物纳米颗粒已被合成,并作为一种高效,可回收,绿色和非均相的催化剂进行研究,用于在无溶剂和温和条件下制备多取代吡咯。这种新催化剂的特征在于不同的技术,例如傅立叶变换红外(FT-IR),X射线粉末衍射(XRD),场发射扫描电子显微镜(SEM),能量色散X射线光谱法(EDX),电感耦合等离子体(ICP)和振动样品磁力法(VSM)。在上述催化剂存在下,硝基甲烷,芳基醛,1,3-二羰基化合物和胺的简单,环境单锅多组分缩合可在室温下提供标题化合物。在最后,