Direct CH Amidation of Benzoic Acids to Introduce<i>meta</i>- and<i>para</i>-Amino Groups by Tandem Decarboxylation
作者:Donggun Lee、Sukbok Chang
DOI:10.1002/chem.201500331
日期:2015.3.27
The Ir‐catalyzed mild CH amidation of benzoic acids with sulfonyl azides was developed to give reactions with high efficiency and functional‐group compatibility. Subsequent protodecarboxylation of ortho‐amidated benzoic acid products afforded meta‐ or para‐substituted (N‐sulfonyl)aniline derivatives, the latter being inaccessible by other CH functionalization approaches. The decarboxylation step
开发了具有磺酰叠氮化物的苯甲酸的Ir催化轻度CH酰胺化反应,可实现高效且具有官能团相容性的反应。随后,将氨基酰胺化的邻氨基苯甲酸产物进行原羧化反应,可得到间位或对位取代的(N-磺酰基)苯胺衍生物,而其他CH官能化方法则无法获得后者。脱羧步骤与酰胺化条件兼容,可实现方便的一锅两步工艺。