Elements of Regiocontrol in Palladium-Catalyzed Oxidative Arene Cross-Coupling
作者:David R. Stuart、Elisia Villemure、Keith Fagnou
DOI:10.1021/ja0745862
日期:2007.10.1
By changing the stoichiometric oxidant and modifying the indole N-substituent in palladium-catalyzedoxidativearene cross-coupling reactions, both C2 and C3 oxidative indole arylation can be achie...
Conditions for the palladium-catalyzed directarylation of a wide range of heterocycles with aryl bromides are reported. Those conditions employ a stoichiometric ratio of both coupling partners, as well as a substoichiometric quantity of pivalicacid, which results in significantly faster reactions. An evaluation of the influence of the nature of the aryl halide has also been carried out.