Efficientone-pot synthesis of imidazoles catalyzed by silica-supported La0.5Pb0.5MnO3 nano particles as anovel and reusable perovskite oxide
作者:N. Zahedi、A. Javid、M. K. Mohammadi、H. Tavakkoli
DOI:10.4314/bcse.v32i1.15
日期:——
Silica-supported La0.5Pb0.5MnO3 nanoparticles was prepared and used as a new perovskite-type catalyst for rapid and efficient synthesis of substituted imidazoles by an one-pot three-component condensation of [9,10]-phenanthraquinone, aryl aldehydes and ammonium acetate in excellent yield under reflux, and also solvent-free conditions.
Preparation, Characterization, and Application of Preyssler Heteropoly Acid Immobilized on Magnetic Nanoparticles as a Green and Recoverable Catalyst for the Synthesis of Imidazoles
作者:A. Javid、A. Khojastehnezhad、A. J. L. Pombeiro
DOI:10.1134/s1070363217120453
日期:2017.12
magnetically separable catalyst was synthesized by immobilization of Preyssler heteropolyacid (HPA) on Ni0.5Zn0.5Fe2O4 magnetite nanoparticles (MNPs) coated with hydroxyapatite (HA). The catalyst was characterized by scaning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), FT-IR, energy dispersive spectroscopy (EDS), and TGA. Activity of this catalyst was tested in
通过将Preyssler杂多酸(HPA)固定在涂有羟基磷灰石(HA)的Ni 0.5 Zn 0.5 Fe 2 O 4磁铁矿纳米颗粒(MNPs)上,合成了一种高效的磁可分离催化剂。通过扫描电子显微镜(SEM),透射电子显微镜(TEM),X射线衍射(XRD),FT-IR,能量色散谱(EDS)和TGA对催化剂进行表征。在室温下,无溶剂条件下,通过[9,10]-菲蒽醌与芳基醛和乙酸铵的一锅三组分缩合,在咪唑衍生物的合成中测试了该催化剂的活性。
Novel two-photon fluorescent probe with high fluorescence quantum yields for tracking lipid droplets in biological systems
作者:Jie Niu、Yong Liu、Weishan Wang、Weiying Lin
DOI:10.1016/j.saa.2019.02.106
日期:2019.6
Lipid droplets (LDs) played an important role in storing neutral lipids process. In this work, we developed a series of fluorescent dyes PIE1-PIE4 with high fluorescence quantumyields based on a single phenanthrenequinone imidazole fluorophore core. Among these compounds, we introduced diethyl aniline group on the phenanthrenequinone imidazole core to provide the compound PIE1. It is firstly found
METHOD OF STORING HYDROGEN, HYDROGEN INCLUSION COMPOUND AND PROCESS FOR PRODUCING THE SAME
申请人:KURITA WATER INDUSTRIES LTD.
公开号:EP1428831A1
公开(公告)日:2004-06-16
An organic compound capable of forming a hydrogen molecular compound such as a hydrogen clathrate is brought in contact with hydrogen gas in a pressurized state. It enables relatively light-weight and stable storage of hydrogen at or near the ordinary temperature and the ambient pressure and easy takeoff of the stored hydrogen.