Isoquinoline Derivatives via Stepwise Regioselective sp²and sp³C–H Bond Functionalizations

Abstract

Efficient and practically attractive stepwise ruthenium- and palladium-catalyzed regioselective C-H bond functionalizations were achieved to produce 4-substituted tetrahydroisoquinoline derivatives featuring various heteroaromatic substructures in moderate to good yields. Both ruthenium- and palladium-based catalytic processes generated nontoxic and easily separable side products.