Palladium-Catalyzed Mono-Selective<i>ortho</i>CH Arylation of Aryl Sulfonamides in Water: A Concise Access to Biaryl Sulfoamide Derivatives
作者:Wei Liu、Dongyin Wang、Yongli Zhao、Fei Yi、Junmin Chen
DOI:10.1002/adsc.201501104
日期:2016.6.16
sulfonamide derivatives via palladium(II)‐catalyzed CH bond activation by employing an amino acid moiety as the bidentate directing group has been developed. The protocol proceeded efficiently in water; high yields and broad substrate scope were achieved. The reaction shows good functional group compatibility and proceeds in a highly selective manner at the ortho position of arenes connected to sulfonamide
已开发出一种绿色经济的方法,该方法通过使用氨基酸部分作为二齿导向基团,通过钯(II)催化的CH键活化来合成联芳基磺酰胺衍生物。该协议在水中有效地进行了;实现了高产量和广泛的基材范围。该反应显示出良好的官能团相容性,并且在与磺酰胺硫原子连接的芳烃的邻位上以高度选择性的方式进行。该助剂可以通过酸水解容易地除去,或转化为具有30mol%量的CuO作为催化剂的伯联芳基磺酰胺。机理研究表明,本双齿导演组是促进必要的邻Ç 与磺酰胺硫原子相连的芳烃的H键活化。