Synthesis and NMR Analysis of 1,4-Disubstituted 1,2,3-Triazoles Tethered to Pyridine, Pyrimidine, and Pyrazine Rings
作者:Aljoša Bolje、Damijana Urankar、Janez Košmrlj
DOI:10.1002/ejoc.201403100
日期:2014.12
modular approach based on the “click” copper(I)-catalysed azide–alkyne cycloaddition reaction was used to prepare a library of selected 1,4-disubstituted 1,2,3-triazoles differently functionalized with heteroaryl groups including pyridine, pyrimidine, and pyrazine. Three different copper(I) sources, i.e., CuSO4/sodium ascorbate, CuBr(PPh3)3, and (CuOTf)2·C6H6 were used to promote the coupling reactions
基于“点击”铜(I)催化的叠氮化物-炔环加成反应的组合模块化方法用于制备精选的1,4-二取代1,2,3-三唑库,这些1,4-二取代1,2,3-三唑被杂芳基(包括吡啶、嘧啶)不同官能化,和吡嗪。三种不同的铜 (I) 来源,即 CuSO4/抗坏血酸钠、CuBr(PPh3)3 和 (CuOTf)2·C6H6 用于促进一系列芳基、杂芳基和杂芳基甲基叠氮化物与炔烃的偶联反应。 “ 伙伴。由于目标杂芳基三唑被设计为用作金属配位的高级配体或配体前体,它们通过 1H、13C 和 15N NMR 光谱进行了充分表征。共振是在 1D 和 2D NMR 实验的基础上确定的。