Annulation π-extension of arenes with alkynes is a straightforward and practical strategy for the rapid construction of polycyclic aromatic compounds. Recently, some intriguingly transition-metal-catalyzed polycyclic arene syntheses were described. However,...

Biaryls have a wide range of applications in medicines, natural products, materials and ligands for metal catalysts. However, it is a huge challenge for the selective cross-coupling between two different...

A conceptually new methodology to give unusual cyclization products from the usual migration substrates was disclosed. The highly complex and structurally important and valuable spirocyclic compounds were produced through radical...