Regiocontrolled aerobic oxidative coupling of indoles and benzene using Pd catalysts with 4,5-diazafluorene ligands†‡
Alison N. Campbell,Eric B. Meyer,Shannon S. Stahl
Chemical Communications Pub Date : 08/22/2011 00:00:00 , DOI:10.1039/C1CC13632A
Abstract

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.

Graphical abstract: Regiocontrolled aerobic oxidative coupling of indoles and benzene using Pd catalysts with 4,5-diazafluorene ligands