Diverse Oxidative C(sp<sup>2</sup>)–N Bond Cleavages of Aromatic Fused Imidazoles for Synthesis of α-Ketoamides and <i>N</i>-(pyridin-2-yl)arylamides
                                
                                    
                                        作者:Fangzhou Xu、Yanyan Wang、Xiwei Xun、Yun Huang、Zhichao Jin、Baoan Song、Jian Wu                                    
                                    
                                        DOI:10.1021/acs.joc.9b00208
                                    
                                    
                                        日期:2019.7.5
                                    
                                    An efficient and chemoselective C(sp(2))-N bond cleavage of aromatic imidazo[1,2-a]pyridine molecules is developed. A broad scope of amide compounds such as alpha-ketoamides and N-(pyridin-2-yl)arylamides are afforded as the final products in up to quantitative yields. Diverse C-N bond cleavages are controlled by the oxidative species used in this transformation, with various amide products afforded in a chemoselective fashion. A preliminary study indicated that some alpha-ketoamides exhibit anti-Tobacco Mosaic Virus activity for potential use in plant protection.