Multi-component reaction for the preparation of 1,5-disubstituted 1,2,3-triazoles by in-situ generation of azides and nickel-catalyzed azide-alkyne cycloaddition
作者:Virgyl Camberlein、Nicolas Kraupner、Nour Bou Karroum、Emmanuelle Lipka、Rebecca Deprez-Poulain、Benoit Deprez、Damien Bosc
DOI:10.1016/j.tetlet.2021.153131
日期:2021.6
An efficient one-pot procedure combining bromide conversion into azide followed by NiAAC for the preparation of 1,5-disubstituted 1,2,3-triazoles has been developed. This procedure prevents the use of isolated azides, which are insufficiently commercially available and could be potentially unstable and difficult to handle. Moreover, this one-pot method tolerates a broad range of functional moieties
已经开发了一种高效的一锅法,将溴化物转化为叠氮化物,然后是 NiAAC,用于制备 1,5-二取代 1,2,3-三唑。该程序防止使用分离的叠氮化物,这些叠氮化物在商业上供应不足,并且可能不稳定且难以处理。此外,这种一锅法可以耐受广泛的功能部分,包括酯、氨基甲酸酯或醇。多种 1,5-二取代的 1,2,3-三唑可以从官能化的芳基和烷基炔烃和溴化物中获得,产率和区域选择性适中至极好。该过程将能够合成功能化的 1,5-二取代 1,2,3-三唑文库,特别有助于多种应用,如药物化学和化学生物学目的。