Free‐Amine‐Directed Iridium‐Catalyzed C−H Bond Activation and Cyclization of Naphthalen‐1‐amines with Diazo Compounds Leading to Naphtho[1,8‐
<i>bc</i>
]pyridines
作者:Kelu Yan、Yongxue Lin、Yong Kong、Bin Li、Baiquan Wang
DOI:10.1002/adsc.201801598
日期:2019.4
Iridium‐catalyzed C−H activation and cyclization of naphthalen‐1‐amines with diazo compounds leading to naphtho[1,8‐bc]pyridines have been developed. Different from the previous free‐amine‐directed C−H functionalization with diazo compounds that relied on the coordination of lone pair electrons or in situ formation of imine, this transformation passes through a five‐membered iridacycle intermediate containing an
已经开发了铱催化的CH-1活化和萘-1-胺与重氮化合物的环合反应,从而生成萘[1,8- bc ]吡啶。与以前的重氮化合物基于孤对电子的配位或亚胺的原位形成的重氮化合物的游离胺定向的CH官能化不同,该转化过程通过包含N-Irσ-键的五元iridacycle中间体进行。 。它为在温和条件下合成有用的各种萘并[1,8- bc ]吡啶衍生物提供了另一种方法。