With molybdenum hexacarbonyl as the carbon monoxide source, a general palladium‐catalyzed carbonylative transformation of the C−H bond on aromatic rings to produce esters has been developed. Good yields of the corresponding products have been obtained with wide functional group tolerance and excellent regioselectivity. A variety of aliphatic alcohols are suitable reactants here.
Efficient Synthesis of Carboxylic Esters via Palladium(II)-Catalyzed Direct Alkoxycarbonylation of Arenes with CO and Alcohols
作者:Bing-Feng Shi、Bin Liu
DOI:10.1055/s-0033-1339868
日期:——
An efficient palladium(II)-catalyzed procedure for the alkoxycarbonylation of arenes and heteroarenes with atmospheric pressure carbon monoxide and alcohols was developed to synthesize aryl carboxylic esters.
Rhodium-Catalyzed Direct Oxidative Carbonylation of Aromatic C−H Bond with CO and Alcohols
作者:Zheng-Hui Guan、Zhi-Hui Ren、Stephen M. Spinella、Shichao Yu、Yong-Min Liang、Xumu Zhang
DOI:10.1021/ja807167y
日期:2009.1.21
A general protocol for the rhodium-catalyzedoxidative carbonylation of arenes to form esters has been developed. A broad substrate scope has been demonstrated allowing carbonylation of electron-rich, electron-poor, and heterocyclic arenes, and the reaction shows wide functional group tolerance and excellent regioselectivities. Up to 96% yield of ortho-substituted aryl or heteroaryl carboxylic esters