Ni‐Catalyzed Direct Carboxylation of Aryl C−H Bonds in Benzamides with CO
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作者:Chunzhe Pei、Jiarui Zong、Bin Li、Baiquan Wang
DOI:10.1002/adsc.202101285
日期:2022.2
The direct carboxylation of inert aryl C−H bond catalyzed by abundant and cheap nickel is still facing challenge. Herein, we report the Ni-catalyzed direct carboxylation of aryl C−H bonds in benzamides under 1 atm of CO2 to afford various methyl carboxylates or phthalimides, dealing with different post-processing. The reaction displays excellent functional group tolerance and affords moderate to high
丰富且廉价的镍催化惰性芳基 C-H 键直接羧化仍面临挑战。在此,我们报道了在 1 个大气压的 CO 2下 Ni 催化的苯甲酰胺中芳基 C-H 键的直接羧化反应,得到各种羧酸甲酯或邻苯二甲酰亚胺,并进行了不同的后处理。该反应表现出优异的官能团耐受性,并在温和条件下提供中等至高的羧化产率。详细的机理研究表明,Ni(0)-Ni(II)-Ni(I) 催化循环可能参与该反应。