Arylative Cyclization of 2-Isocyanobiphenyls with Anilines: One-Pot Synthesis of 6-Arylphenanthridines via Competitive Reaction Pathways
作者:Zhonghua Xia、Jinbo Huang、Yimiao He、Jiaji Zhao、Jian Lei、Qiang Zhu
DOI:10.1021/ol500923t
日期:2014.5.2
A transition-metal-free method for the synthesis of C6 phenanthridine derivatives by arylative cyclization of 2-isocyanobiphenyls with arylamines in one pot was developed. Mechanistic studies suggest that electrophilic aromatic substitution (SEAr) of a nitrilium intermediate and homolytic aromatic substitution (HAS) of an imidoyl radical intermediate are two competitive reaction pathways involved in
开发了一种无过渡金属的方法,该方法通过在一个罐中用芳基胺对2-异氰基联苯进行芳环化来合成C6菲啶衍生物。机理研究表明,电芳族取代(S Ë一个亚氨的nitrilium中间和均裂芳族取代(HAS)的AR)自由基中间体是参与环步骤2种竞争反应途径。