Rhodium(I)-Catalyzed Direct Carboxylation of Arenes with CO<sub>2</sub> via Chelation-Assisted C−H Bond Activation
作者:Hajime Mizuno、Jun Takaya、Nobuharu Iwasawa
DOI:10.1021/ja109097z
日期:2011.2.9
products in good yields. The catalysis is proposed to consist of methylrhodium(I) species as the key intermediate, which undergoes C-Hactivation to afford rhodium(III), followed by reductive elimination of methane to give nucleophilic arylrhodium(I). This approach demonstrates promising application of C-Hbondactivation strategy in the field of carbon dioxide fixation.
An electrochemical approach to promote the ortho-C–H alkylation of (hetero)arenes via rhodium catalysis undermildconditions is described. This approach features mildconditions with high levels of regio- and monoselectivity that tolerate a variety of aromatic and heteroaromatic groups and offers a widely applicable method for late-stage diversification of complex molecular architectures including