Peptidotriazoles on Solid Phase: [1,2,3]-Triazoles by Regiospecific Copper(I)-Catalyzed 1,3-Dipolar Cycloadditions of Terminal Alkynes to Azides
作者:Christian W. Tornøe、Caspar Christensen、Morten Meldal
DOI:10.1021/jo011148j
日期:2002.5.1
The cycloaddition of azides to alkynes is one of the most important synthetic routes to 1H-[1,2,3]-triazoles. Here a novel regiospecific copper(I)-catalyzed 1,3-dipolar cycloaddition of terminal alkynes to azides on solid-phase is reported. Primary, secondary, and tertiary alkyl azides, aryl azides, and an azido sugar were used successfully in the copper(I)-catalyzed cycloaddition producing diversely
叠氮化物与炔烃的环加成反应是合成1H- [1,2,3]-三唑的最重要合成途径之一。在这里报道了一种新型的区域特异性铜(I)催化的末端炔烃在固相上与叠氮化物的1,3-偶极环加成反应。伯,仲和叔烷基叠氮化物,芳基叠氮化物和叠氮糖已成功用于铜(I)催化的环加成反应中,在肽主链或侧链上产生了不同的1,4-取代的[1,2,3]-三唑。反应条件与极性载体上的固相肽合成完全相容。铜(I)催化反应温和有效(大多数情况下> 95%的转化率和纯度),此外,2-叠氮基-2-甲基丙酸的X射线结构得到了解析,以得到有关1, 3-偶极子进入反应。