Palladium‐Catalyzed Decarboxylative
<i>ortho</i>
‐C(sp
<sup>2</sup>
)−H Aroylation of
<i>N</i>
‐Sulfoximine Benzamides at Room Temperature
作者:Prasenjit Das、Promita Biswas、Joyram Guin
DOI:10.1002/asia.201901759
日期:2020.3.16
A palladium-catalyzed method for the decarboxylative ortho C-H acylation of N-sulfoximine benzamides is developed at room temperature. The catalytic method enables easy access to various functionalized 2-aroylaromatic carboxylic acid derivatives in good isolated yields. Based on our mechanistic studies, a Pd(II)/Pd(IV) catalytic cycle that involves aroyl radical intermediate is proposed for the reaction
在室温下开发了钯催化的N-磺胺嘧啶苯甲酰胺的邻羧基CH酰化的方法。该催化方法使得能够容易地以良好的分离产率获得各种官能化的2-芳基芳族羧酸衍生物。基于我们的机理研究,提出了涉及芳酰基自由基中间体的Pd(II)/ Pd(IV)催化循环。