One-Pot Synthesis of 1,4-Disubstituted 1,2,3-Triazoles from In Situ Generated Azides
作者:Alina K. Feldman、Benoît Colasson、Valery V. Fokin
DOI:10.1021/ol048859z
日期:2004.10.1
[reaction: see text] 1,4-Disubstituted1,2,3-triazoles are obtained in excellent yields by a convenient one-pot procedure from a variety of readily available aromatic and aliphatic halides without isolation of potentially unstable organic azide intermediates.
Reaction between azides and acetylenes catalysed by ZnO nanoparticles (ZnO NPs) in solvent EtOH at room temperature provide a simple and efficient one-pot route for the synthesis of 1,4-disubstituted 1,2,3-triazoles in excellent yields. 1,2,3-Triazoles are used in various agricultural, industrial and medical fields.
Metallic copper wire: a simple, clear and reusable catalyst for the CuAAC reaction in supercritical carbon dioxide
作者:Yuqin Jiang、Xing He、Weiwei Zhang、Xingfeng Li、Niu Guo、Yaru Zhao、Guiqing Xu、Wei Li
DOI:10.1039/c5ra11797f
日期:——
Relatively mild conditions, easy work-up and a simple purification; the stable and easily obtained catalyst presented here could be reused for more than 200 cycles for a 10 cm length of copper wire.