Olefin Amine (OLA) Reagents for the Synthesis of Bridged Bicyclic and Spirocyclic Saturated N-Heterocycles by Catalytic Hydrogen Atom Transfer (HAT) Reactions
作者:Ya-Yi Wang、Jeffrey W. Bode
DOI:10.1021/jacs.9b05074
日期:2019.6.19
spiro-, and fused rings. The OLA reagents are easily prepared and allow the synthesis of complex molecular frameworks under operationally simple conditions that tolerate a wide array of functional groups. Investigations into the Mn or Fe promoted reaction pathway support a metal hydride hydrogen atom transfer (MH-HAT) to generate a C-centered radical that undergoes addition to an unactivated imine
螺旋和桥连双环结构需要富含 sp3 的框架,这些框架提供独特的理化性质和精确定位的取代基。为了以交叉偶联方式快速访问此类分子,我们描述了烯烃胺 (OLA) 试剂,用于将醛和酮转化为所有三种拓扑类型的双环 N-杂环:桥环、螺环和稠环。OLA 试剂很容易制备,并允许在操作简单的条件下合成复杂的分子框架,可耐受多种官能团。对 Mn 或 Fe 促进的反应途径的研究支持金属氢化物氢原子转移 (MH-HAT) 以生成 C 中心自由基,该自由基与未活化的亚胺加成,导致 N 中心自由基。
Nano-tube TiO2 as a new catalyst for eco-friendly synthesis of imines in sunlight
作者:Mona Hosseini-Sarvari
DOI:10.1016/j.cclet.2010.11.017
日期:2011.5
Nanomaterials are considered as suitable heterogeneous catalysts for many organic reactions. Herein nano-tube TiO2 has been reported as a heterogeneous catalyst, for synthesis of imines in sunlight at room temperature under solvent-free conditions. The condensation of less electrophilic carbonyl compounds with poorly nucleophilic amines was afforded imines in excellent yields. (c) 2010 Mona Hosseini-Sarvari. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Synthesis and antimalarial activity of new nanocopolymer β-lactams and molecular docking study of their monomers
作者:Edris Ebrahimi、Aliasghar Jarrahpour、Nahid Heidari、Véronique Sinou、Christine Latour、Jean M. Brunel、Amin R. Zolghadr、Edward Turos
DOI:10.1007/s00044-015-1477-7
日期:2016.2
This report describes the preparation of some new beta-lactam nanocopolymers. These nanoparticles are synthesized in water by emulsion polymerization of an acrylate beta-lactam pre-dissolved in a mixture of co-monomers in the presence of sodium dodecyl sulfate as a surfactant and potassium persulfate as a radical initiator. Dynamic light scattering analysis and electron microscopy images of these emulsions show that the nanoparticles are approximately 30-70 nm in diameter. These compounds have been evaluated for their antimalarial activities against chloroquine-resistant Plasmodium faliparum K1 strain demonstrating IC50 varying from 14 to 50 A mu M. The interactions between these beta-lactam nanocopolymers and the P. falciparum single-stranded DNA-binding proteins have been studied by molecular docking calculations.