作者:Ahmed Kamal、Ponnampalli Swapna
DOI:10.1039/c3ra22485f
日期:——
Treatment of various chalcones and sodium azide in the presence of catalytic amounts of commercially available iron oxide nanoparticles, followed by the addition of aryl halides afforded N-2-arylated 1,2,3-triazoles in very good yields. This tandem three-component reaction involves an oxidative 1,3-dipolar cycloaddition of the chalcone and azide and subsequent regioselective N-2-arylation. The nano-catalyst is easily recoverable and can be reused without any significant loss in catalytic activity.
在商业上可获得的氧化铁纳米粒子的催化量存在下,将各种查尔酮和叠氮化钠处理,随后加入芳基卤化物,以很好的产率合成了N-2-芳基取代的1,2,3-三氮唑。这种三组分串联反应涉及查尔酮和叠氮化物的氧化性1,3-偶极环加成反应,以及随后的区域选择性N-2-芳基化。纳米催化剂易于回收,并且可以重复使用而不会显著损失其催化活性。