Identification of dihydropyridines that reduce cellular tau levels
作者:Christopher G. Evans、Umesh K. Jinwal、Leah N. Makley、Chad A. Dickey、Jason E. Gestwicki
DOI:10.1039/c0cc02253e
日期:——
A series of dihydropyridines were identified that have an effect on the accumulation of tau, an important target in Alzheimer's disease. The dihydropyridine collection was expanded using the Hantzsch multicomponent reaction to develop preliminary structure–activity relationships.
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
Synthesis and characterization of copper (II)-poly(acrylic acid)/M-MCM-41 nanocomposite as a novel mesoporous solid acid catalyst for the one-pot synthesis of polyhydroquinoline derivatives
Abstract In this study, a novel mesoporous silica nanocomposite (MSNC) based on poly(acrylic acid) and amine-functionalized MCM-41 mesoporous silica as amplification agents was constructed via an ultrasonic-assisted method as a straightforward, fast, eco-friendly and it is denoted as M-MCM-41. Then Cu (II) was immobilized on PAA/M-MCM-41 surface and the novel heterogeneous reusable catalyst was fully
Surfactant-directed one-pot preparation of novel Ti-containing mesomaterial with improved catalytic activity and reusability
作者:Dawood Elhamifar、Omolbanin Yari、Shaaker Hajati
DOI:10.1002/aoc.4471
日期:2018.10
Titanium was incorporated in ionicliquidbasedperiodicmesoporousorganosilica to prepare a nanostructured catalyst (Ti@PMO‐IL) with high activity. Procedure for the synthesis of Ti@PMO‐IL was followed according the simultaneous hydrolysis and condensation of alkylimidazolium ionicliquid, tetramethoxysilane (TMOS) and tetrabutylorthotitanate (TBOT) where a surfactant template was used together with