A Metal-Free, Aqueous and General Route to 1,5-Disubstituted-1,2,3-triazoles: ‘Reversed Regioisomeric’ 1,3-Dipolar Cycloaddition of Azides and Vinyl Sulfones
作者:Tanmaya Pathak、Santu Dey、Dhrubajyoti Datta
DOI:10.1055/s-0030-1260306
日期:2011.10
A metal-free, vinyl sulfone-based synthesis of 1,5-disubstituted-1,2,3-triazoles is reported for the first time. These triazoles are easily formed in a regioselective fashion by heating under reflux a mixture of a substituted vinyl sulfone and an organic azide ‘on water’. This powerful and practical route has the potential to be exploited for the synthesis of complex 1,5-disubstituted-1,2,3-triazoles.
首次报道了一种无金属的基于乙烯基磺酰的1,5-二取代-1,2,3-三唑的合成方法。这些三唑可以通过在水相中加热回流甲基取代的乙烯基磺酰和有机叠氮化合物的混合物,以区域选择性的方式轻易形成。这条强大且实用的路线有潜力用于合成复杂的1,5-二取代-1,2,3-三唑。