36057-77-9Relevant academic research and scientific papers
Immobilized silver on surface-modified ZnO nanoparticles: As an efficient catalyst for synthesis of propargylamines in water
Movahedi, Farnaz,Masrouri, Hassan,Kassaee
, p. 52 - 57 (2014)
Silver nanoparticles were immobilized on ionic liquid modified zinc oxide nanoparticles leading to a ZnO-IL/Ag NPs catalyst, which exhibits high catalytic performance in the synthesis of propargylamines through one-pot three-component condensation reaction of aldehydes, amines, and alkynes in water. The as-prepared catalyst was characterized by ICP-AES, FT-IR, XRD, SEM, and TEM. The catalyst was easily recycled and reused at least five times without significant loss of its catalytic activity.
Preparation of Au nanoparticles by Anthemis xylopoda flowers aqueous extract and their application for alkyne/aldehyde/amine A3-type coupling reactions
Nasrollahzadeh, Mahmoud,Sajadi, S. Mohammad
, p. 46240 - 46246 (2015/06/08)
This paper reports on the green synthesis of gold nanoparticles (Au NPs) by Anthemis xylopoda flowers aqueous extract without the addition of surfactant agents and their application as stable catalysts for propargylamines through one-pot three-component condensation reaction of aldehydes, amines, and alkynes. FT-IR, UV-vis spectroscopy and transmission electron microscopy (TEM) are used for the characterization of Au NPs. Polyphenolics are believed to play an important role in Au NPs biosynthesis through the reduction of gold ions. This method provides high yields and easy work up. In comparison with homogeneous and traditional heterogeneous catalysts, metallic NPs display greater catalytic activity due to the increased metal surface area and require less metal to be used in catalysis. Also, in every case, the Au NPs could be easily recovered and reused several times, and at the end of the process, the product was metal-free. This journal is
