Reactant for:Preparation of cyclopentene fused benzofurans and indoles via Pd-catalyzed tandem ring opening-ring closing reaction with diazabicyclic alkenesHighly regioselective synthesis of spirocyclic compounds by a palladium-catalyzed intermolecular tandem reactionRegioselective synthesis of indene derivatives via Pd/C-catalyzed cyclization reaction in airPreparation of carbazoles via cross-coupling with silylaryl triflates followed by palladium-catalyzed cyclizationStereoselective preparation of heteropolycyclic compounds via palladium-catalyzed stereoselective heteroannulation of with cyclic alkenesPreparation of disubstituted coumarins via palladium-catalyzed carbonylative annulation of internal alkynesPreparation of arylalkynes, benzofurans and indoles via Sonogashira coupling and cyclization on alumina