Rhodium(II)-Catalyzed Aryl C−H Carboxylation of 2-Pyridylphenols with CO<sub>2</sub>
作者:Zhihua Cai、Shangda Li、Yuzhen Gao、Gang Li
DOI:10.1002/adsc.201800611
日期:2018.10.18
A protocol for C−H carboxylation of electron‐deficient 2‐pyridylphenols with CO2 through a Rh(II)‐catalyzed C−H bond activation under redox‐neutral conditions has been developed. A suitable phosphine ligand was crucial for this reaction. This method provided, in generally high yields, an access to a class of pyrido‐coumarins that are key structural motifs in biologically important molecules. Facile
已经开发了在氧化还原中性条件下通过Rh(II)催化的CH键键活化电子不足的2-吡啶基酚与CO 2的CH羧基羧化的协议。合适的膦配体对于该反应至关重要。该方法通常以高收率提供对一类吡啶-香豆素的访问,这些吡啶-香豆素是生物学上重要的分子中的关键结构基序。还举例说明了简便的产品衍生化方法。