Transition metal-free direct amination of benzoxazoles using formamides as nitrogen sources
作者:Rui Wang、Hong Liu、Liang Yue、Xiao-ke Zhang、Qiu-yuan Tan、Ruo-lin Pan
DOI:10.1016/j.tetlet.2014.02.070
日期:2014.4
A transition metal-free method for the direct amination of benzoxazoles using formamides as nitrogen sources is reported, which was mediated by an inexpensive and environmentally friendly tetrabutylammonium iodide/tert-butyl hydroperoxide system and gave the 2-aminobenzoxazole derivatives with moderate to good yields.
报道了一种使用甲酰胺作为氮源的无过渡金属直接胺化苯并恶唑的方法,该方法由廉价且环保的碘化四丁基铵/叔丁基氢过氧化物体系介导,并以中等至良好的收率得到了2-氨基苯并恶唑衍生物。