Nano-ferrous ferric oxide (nano-Fe3O4): magnetite catalytic system for the one-pot four-component tandem imine/enamine formation-Knoevenagel–Michael-cyclocondensation reaction of dimedone, aldehydes, β-ketoesters and ammonium acetate under green media
Polyhydroquinolines: 1-sulfopyridinium chloride catalyzed an efficient one-pot multicomponent synthesis via Hantzsch condensation under solvent-free conditions
作者:B. Sakram、B. Sonyanaik、K. Ashok、S. Rambabu
DOI:10.1007/s11164-016-2559-y
日期:2016.10
construction of polyhydroquinoline derivatives via one-pot, four-component Hantzsch condensation of various aldehydes, dimedone, ethyl acetoacetate, and ammonium acetate in the presence of an ionic liquid, 1-sulpopyridinium chloride, as a catalyst undersolvent-freeconditions. This methodology has an advantage of high yields, short reaction times, a clean reaction profile, and reusability of the catalyst.
Novel magnetic nanoparticles with morpholine tags as multirole catalyst for synthesis of hexahydroquinolines and 2-amino-4,6-diphenylnicotinonitriles through vinylogous anomeric-based oxidation
作者:Sima Kalhor、Meysam Yarie、Majid Rezaeivala、Mohammad Ali Zolfigol
DOI:10.1007/s11164-019-03802-7
日期:2019.6
magnetometry (VSM). The catalytic performance of the novel nanomagnetic catalyst was examined in multicomponent preparation of hexahydroquinolines and 2-amino-4,6-diphenylnicotinonitriles through vinylogous anomeric-based oxidation under mild reaction conditions. Graphical abstract Novel magnetic nanoparticles with morpholine tags promoted synthesis of hexahydroquinolines and 2-amino-4,6-diphenylnicotinonitriles
Magnetic Fe3O4 nanoparticles: Efficient and recoverable nanocatalyst for the synthesis of polyhydroquinolines and Hantzsch 1,4-dihydropyridines under solvent-free conditions
A green approach for efficient and rapid synthesis of biologically active substituted Hantzsch 1,4-dihydropyridine and polyhydroquinolinederivatives using magneticFe3O4 nanoparticles (Fe3O4 MNPs) as a recyclable catalyst undersolvent-freeconditions was reported. The catalyst was characterized by FT-IR, XRD, and TEM analysis. Compared to the classical reactions, this method consistently has the
报道了在无溶剂条件下使用磁性Fe 3 O 4纳米颗粒(Fe 3 O 4 MNPs)作为可循环利用催化剂高效,快速合成生物活性取代的Hantzsch 1,4-二氢吡啶和聚氢喹啉衍生物的绿色方法。通过FT-IR,XRD和TEM分析对催化剂进行了表征。与经典反应相比,该方法始终具有反应时间短,催化剂负载少,收率高,易于磁分离和催化剂可重复使用的优点。
Synthesis and characterization of novel silica-coated magnetic nanoparticles with tags of ionic liquid. Application in the synthesis of polyhydroquinolines
作者:Mohammad Ali Zolfigol、Meysam Yarie
DOI:10.1039/c5ra23670c
日期:——
A novel, green and recoverable silica-coated magnetic nanoparticle immobilized ionic liquid, was designed, synthesized, fully characterized and was used for the synthesis of polyhydroquinoline derivatives.
Novel magnetic nanoparticles with ionic liquid tags as a reusable catalyst in the synthesis of polyhydroquinolines
作者:Meysam Yarie、Mohammad Ali Zolfigol、Yadollah Bayat、Asiye Asgari、Diego A. Alonso、Abbas Khoshnood
DOI:10.1039/c6ra16459e
日期:——
electron microscopy (HRTEM), thermogravimetry (TG), derivative thermal gravimetric (DTG), differential thermal (DTA) and vibrating sample magnetometer (VSM) analyses. The nanomagnetic heterogeneous catalyst was successfully applied for the synthesis of polyhydroquinoline derivatives via a four component condensation of a good range of aryl aldehydes, dimedone, ethyl acetoacetate or methyl acetoacetate