Synthesis of benzo[d,e]quinoline-spiro-succinimides via rhodium-catalyzed C-H activation/annulation of 1-naphthylamides with maleimides.

This study unveils the first rhodium-catalyzed synthesis of benzo[d,e]quinoline-spiro-succinimides via C-H activation/annulation of 1-naphthylamides with maleimides, utilizing picolinamide as a directing group. This method boasts a broad substrate scope, excellent yields, and wide range of functional group tolerance. Mechanistic insights and promising photoluminescence are reported, demonstrating an efficient route to valuable all-carbon quaternary spirocyclic compounds.