Facile Synthesis of 1,2,4-trisubstituted Imidazoles via Aerobic Copper Catalyzed Ligand-free [3+2] Cycloaddition
作者:Wei Li、Weixiang Tian、Ming Lei
DOI:10.2174/1570178611666140207221202
日期:2014.4
A simple and facile approach to highly functionalized imidazole derivatives in moderate to good yields has
been developed. This method involves copper catalyzed aerobic [3+2] cycloaddition of amidines with nitroolefins in
absence of ligand. Based on observation of the intermediates, possible reaction mechanism different from the same
reported approach was proposed.
一种简单易行的方法被开发用于在中等到良好的产率下合成高度功能化的咪唑衍生物。该方法涉及在没有配体的情况下,铜催化的有氧[3+2]环加成反应,其中氨基脲与亚硝基烯反应。基于对中间体的观察,提出了一种不同于已有报道的方法的可能反应机制。