Rhodium(I)-Catalyzed Aryl C–H Carboxylation of 2-Arylanilines with CO<sub>2</sub>
作者:Yuzhen Gao、Zhihua Cai、Shangda Li、Gang Li
DOI:10.1021/acs.orglett.9b01105
日期:2019.5.17
An unprecedented Rh(I)-catalyzed, amino-group-assisted C–H carboxylation of 2-arylanilines with CO2 under redox-neutral conditions has been developed. This reaction was promoted by a phosphine ligand with t-BuOK as the base and did not require the use of additional strong organometallic reagent. It enabled an efficient direct conversion of a broad range of 2-(hetero)arylanilines including electron-deficient
在氧化还原中性条件下,开发了空前的Rh(I)催化的2-芳基苯胺与CO 2的氨基辅助CH羧基羧化反应。通过以t- BuOK为碱的膦配体促进了该反应,并且不需要使用其他强有机金属试剂。它能够将包括缺电子的杂芳烃在内的各种2-(杂)芳基苯胺有效地直接转化为各种菲啶酮。在初步的机理研究中还评估了反应的可能中间体。