Iridium‐Catalyzed
<i>ortho‐</i>
C−H Amidation of Benzenesulfonamides with Sulfonyl Azides
作者:Hongcen Hou、Yongli Zhao、Shouri Sheng、Junmin Chen
DOI:10.1002/adsc.201900573
日期:2019.9.17
herein an iridium‐catalyzed direct C−H activation/ C−N bond formation reaction of benzenesulfonamides with sulfonyl azides. The amidation reaction provides a protocol for the synthesis of 2‐aminobenzesulfonamides in good to excellent yields. This strategy features a wide substrate scope, tolerates a broad range of functional groups under external oxidant‐free conditions and only releases molecular nitrogen
我们在此开发了铱催化的苯磺酰胺与磺酰叠氮化物的铱催化直接CH活化/ CN键形成反应。酰胺化反应为合成2-氨基苯磺酰胺类化合物提供了良好的合成方案。该策略具有广泛的底物范围,在无外部氧化剂的条件下可耐受各种官能团,并且仅释放分子氮作为唯一的副产物。此外,还研究了初步机理并提供了建议的反应途径。