Room temperature clickable coupling electron deficient amines with sterically hindered carboxylic acids for the construction of amides
作者:Jing Liu、Shi-Meng Wang、Hua-Li Qin
DOI:10.1016/j.tet.2020.131724
日期:2020.12
A method for the synthesis of difficult-to-access amides was developed through the coupling of stericallyhindered carboxylic acids and electron deficient amines via SO2F2-mediated dehydration. The method feathers with broad substrate scope, mild conditions, excellent functional group compatibility and high yields.
通过空间受阻的羧酸和缺电子的胺通过SO 2 F 2介导的脱水的偶联,开发了一种难以合成的酰胺的合成方法。该方法具有广泛的底物范围,温和的条件,优异的官能团相容性和高收率。
A convenient synthesis of <i>N</i>-(hetero)arylamides by the oxidative coupling of methylheteroarenes with amines
作者:Anjali Jaiswal、Preeti、Krishna Nand Singh
DOI:10.1039/d2ob01106a
日期:——
An oxidative amidation of 2-methylpyridines/2-methylbenzimidazole with amines using copper acetate and elemental sulfur in DMSO to afford various N-(hetero)arylamides has been accomplished. Mechanistic studies reveal the intermediacy of N-(pyridin-2-ylmethyl)aniline and confirm the role of DMSO as the oxygen source.