Pd-catalyzed imine-directed intramolecular C N bond formation through C(sp3) H activation: An efficient approach to multisubstituted pyrroles

An atom-economic approach to synthesize 1,2,4-trisubstituted pyrroles through palladium-catalyzed imine-directed intramolecular C(sp3)H amination reaction has been developed. The imine group acts as a directing group as well as an intramolecular nucleophile for the first time in intramolecular CN bonds formation reactions.