diversified pyrido[1,2-a]benzimidazoles and 1H-benzo[d]imidazoles from N-aryl-2-aminopyridines and N-arylamidines has been developed. The C-H cycloamination reaction was catalyzed by hypervalent iodine(III) species generated in situ from iodobenzene (catalytic) and peracetic acid (stoichiometric). The reaction proceeded smoothly at ambient temperature to provide the corresponding N-heterocycles in good
已开发了由N-芳基-2-
氨基吡啶和N-芳基丙啶合成多种
吡啶并[1,2-a]
苯并咪唑和1H-苯并[d]
咪唑的无
金属方法。CH环胺化反应由
碘苯(催化)和
过乙酸(
化学计量)原位生成的高价
碘(III)物种催化。反应在环境温度下顺利进行,以良好至优异的产率提供相应的N-杂环。