Functionalized superparamagnetic Fe<sub>3</sub>O<sub>4</sub> as an efficient quasi-homogeneous catalyst for multi-component reactions
作者:U. Chinna Rajesh、Divya Divya、Diwan S. Rawat
DOI:10.1039/c4ra06803c
日期:——
Tetrabutylammonium valinate [NBu4][Val] ionic liquid functionalized Fe3O4 NPs (VSF) was used as an efficient “quasi-homogeneous” catalyst for multi-component synthesis of 1,4-dihydropyridines and 2-amino-4-(indol-3-yl)-4H-chromenes at room temperature.
Microwave-Assisted IBX-Mediated One-Pot Four-Component Synthesis of 4-Arylhexahydroquinoline Derivatives from Benzyl Alcohols: A Metal-Free Approach
作者:D. Khan、Shaily、N. Maurya
DOI:10.1134/s107042802304019x
日期:2023.4
Abstract An operationally convenient microwave-enhanced IBX-mediated one-pot multicomponent reaction has been proposed for the preparation of hexahydrohydoquinoline derivatives from benzyl alcohols, cyclic 1,3-diketones, ammonium acetate, and ethyl acetoacetate. The reaction is likely to involve the oxidation of benzyl alcohol into benzaldehyde and sequential reactions with other components. o-Iodoxybenzoic
Hydromagnesite as an Efficient Recyclable Heterogeneous Solid Base Catalyst for the Synthesis of Flavanones, Flavonols and 1,4-Dihydropyridines in Water
作者:U. Chinna Rajesh、Sunny Manohar、Diwan S. Rawat
DOI:10.1002/adsc.201300555
日期:2013.11.11
AbstractA form of hydromagnesite (HM) with flower‐like thin‐sheet morphology was synthesized by an environmentally benign approach using simple conventional heating at moderate temperature without using any template in water as medium. The versatility of this HM catalyst was studied in the synthesis of flavanones, flavonols and the multicomponent synthesis of 1,4‐dihydropyridines in water. The recyclability of catalyst was studied for six times and there was no appreciable loss in its catalytic activity.magnified image
Synthesis of MCM-41 supported cobalt (II) complex for the formation of polyhydroquinoline derivatives
作者:Saurabh Sharma、Udai P. Singh、A.P. Singh
DOI:10.1016/j.poly.2021.115102
日期:2021.5
POLYHYDROQUINOLINE COMPOUNDS AND DIHYDROPYRIDINE COMPOUNDS FOR INHIBITING BETA-AMYLOID PRODUCTION
申请人:Mullan Michael J.
公开号:US20100119599A1
公开(公告)日:2010-05-13
Provided are methods of treating or reducing the risk of developing beta-amyloid production, beta-amyloid deposition, beta-amyloid neurotoxicity (including abnormal hyperphosphorylation of tau) and microgliosis associated with cerebral accumulation of Alzheimer's amyloid by administering therapeutically effective amounts of polyhydroquinoline and dihydropyridine compounds which decrease Abeta production in cells. Further provided are methods for diagnosing diseases associated with cerebral accumulation of Alzheimer's amyloid in animals or humans by administering diagnostically effective amounts of polyhydroquinoline and dihydropyridine compounds which decrease Abeta production in cells.