Regioselective Oxidative Arylation of Indoles Bearing <i>N-</i>Alkyl Protecting Groups: Dual C−H Functionalization via a Concerted Metalation−Deprotonation Mechanism
作者:Shathaverdhan Potavathri、Kyle C. Pereira、Serge I. Gorelsky、Andrew Pike、Alexis P. LeBris、Brenton DeBoef
DOI:10.1021/ja107159b
日期:2010.10.20
The most directmethod for synthesizing 2-arylindoles is oxidativecoupling of an arene with an indole. We have shown that both the activity and regioselectivity of this cross-coupling reaction are correlated with the acidity of the medium. This insight has been applied to predict the best conditions for the oxidative cross-coupling of N-alkylindoles, an important class of substrates that has heretofore
Regiocontrolled aerobic oxidative coupling of indoles and benzene using Pd catalysts with 4,5-diazafluorene ligands
作者:Alison N. Campbell、Eric B. Meyer、Shannon S. Stahl
DOI:10.1039/c1cc13632a
日期:——
Palladium-catalyzed aerobic oxidative cross-couplings of indoles and benzene have been achieved by using 4,5-diazafluorene derivatives as ancillary ligands. Proper choice of the neutral and anionic ligands enables control over the reaction regioselectivity.