作者:Hui Xu、Xinhong Yu、Leying Sun、Jing Liu、Wen Fan、Yongjia Shen、Wei Wang
DOI:10.1016/j.tetlet.2008.05.122
日期:2008.8
A powerful microwave-assisted three-component Knoevenagel-nucleophilic aromatic substitution reaction of 4-halobenzaldehydes, cyanoacetatic acid esters/cyanoacetamides, and cyclic secondary amines has been developed. (C) 2008 Elsevier Ltd. All rights reserved.
Ultrasound-assisted and Efficient Knoevenagel Condensation Reaction Catalyzed by Silica Sodium Carbonate Nanoparticles
malononitriles/methylcianoor ethylciano acetates in a onepot reaction catalyzed by silica sodium carbonate nanoparticles (SSC NPs) is described. In this reaction, SSC NPs demonstrated high efficiency as catalyst to obtain target products. By this achievement, a wide range of α,β-unsaturated compounds as Knoevenagel condensation products with good to excellent yields are obtained from reaction between numerous