General Entry into <i>o</i>
-,<i>o′</i>
-Heteroatom-Linked <i>N</i>
-(Hetero)aryl-Imidazole Motifs by Gold-Catalysed Formal [3+2]-Dipolar Cycloaddition
作者:Miguel Garzón、Elsa M. Arce、Raju Jannapu Reddy、Paul W. Davies
DOI:10.1002/adsc.201700249
日期:2017.6.6
general redox‐neutral approach into the o‐,o′‐heteroatom‐linked N‐(hetero)aryl‐imidazole family of heteroaromatics has been developed. New types of heteroatom substituted carbimidoyl nitrenoids are efficiently realised from robust, bench‐stable N‐(heteroaryl)‐pyridinium‐N‐aminides by formal gold‐catalysed [3+2]‐dipolar cycloadditions across ynamides. Broad structural variety and functional group tolerance
已开发出一种将杂芳烃的邻,邻杂原子连接的N-(杂)芳基-咪唑家族的氧化还原中性方法。新型的杂原子取代的碳酰亚胺基亚硝基化合物可以通过稳定的,稳定的N-(杂芳基)-吡啶鎓-N-胺类化合物,通过正式的金催化的[3 + 2]-偶极环加成酰胺类有效地实现。广泛的结构多样性和官能团耐受性允许快速进入各种功能化的支架,如制备8个不同的杂芳族核心所示。