Efficient, Convenient and Mild Three Component Template Preparation and Characterization of Some New Schiff Base Complexes
作者:Hossein Naeimi、Azam Karshenas
DOI:10.1002/jccs.201300034
日期:2013.8
A few kinds of novel Schiffbasecomplexes have been prepared by threecomponent reaction of the substituted hydroxyacetophenone with several aliphatic diamines and transition metals such as; Ni(II), Zn(II) and UO2(II) under mild reaction conditions. The products have been afforded with excellent yields and appropriate reaction times. The structure of these ligands has been characterized by their IR
通过取代的羟基苯乙酮与几种脂族二胺和过渡金属(如)的三组分反应,已经制备了几种新颖的席夫碱配合物。Ni(II),Zn(II)和UO 2(II)在温和的反应条件下。已经以优异的产率和适当的反应时间提供了产物。这些配体的结构已通过其IR,1 H NMR,13 C NMR和MS光谱和物理数据进行了表征。
Highly regioselective conversion of epoxides to β-hydroxy nitriles using metal(II) Schiff base complexes as new catalysts under mild conditions
作者:Hossein Naeimi、Azam Karshenas
DOI:10.1016/j.poly.2012.10.019
日期:2013.1
Epoxides undergo efficient ring opening with potassium cyanide in acetonitrile in the presence of metal Schiff base complexes as catalysts. This method was carried out under neutral and mild conditions with both high yields and high regioselectivity within a short period of time. Thus, several beta-hydroxy nitriles, useful intermediates for the synthesis of biologically active molecules, were easily obtained at room temperature. (C) 2012 Elsevier Ltd. All rights reserved.