Synthesis of phenylazides and 1-phenyl-1,2,3-triazoles bearing (E)-2-halovinyl group
作者:W. Zhang、C. Su、C. Kuang、Q. Yang
DOI:10.1007/s11172-010-0100-9
日期:2010.2
Treatment of (E)-3-(4-azidophenyl)- and (E)-3-(2-azidophenyl)acrylic acid with N-halosuccinimides in the presence of LiOAc afforded high yields of phenylazides containing (E)-2-halovinyl group. The latter were transformed to different phenyl-1,2,3-triazoles bearing (E)-halovinyl group by the CuI-catalyzed reaction of 1,3-dipolar cycloaddition.
The Use of Calcium Carbide in the Synthesis of 1-Monosubstituted Aryl 1,2,3-Triazole via Click Chemistry
作者:Chunxiang Kuang、Yubo Jiang、Qing Yang
DOI:10.1055/s-0029-1218346
日期:2009.12
The synthesis of 1-monosubstituted aryl 1,2,3-triazoles was achieved using calcium carbide as a source of acetylene. The copper-catalyzed 1,3-dipolar cycloaddition reactions were carried out without nitrogen protection and in a MeCN-H 2 O mixture. The yields ranged from moderate to excellent. The reaction conditions were found to be uccessful for aryl azide reactants, including analogues with various
1-单取代芳基1,2,3-三唑的合成是使用碳化钙作为乙炔来源实现的。铜催化的 1,3-偶极环加成反应在没有氮保护的情况下在 MeCN-H 2 O 混合物中进行。产量从中等到极好。发现反应条件对于芳基叠氮化物反应物是成功的,包括具有各种官能度的类似物。