,

Selective Copper-Catalyed Intramolecualr Hydroalkoxylation for Preparation of 2,5-Dihydrofurans

,

Synthesis of Coumarins via Brønsted Acid-Mediated Condensation of Allenes

,

Hybrid System of Metal/Bronsted Acid Relay Catalysis for the Intramolecular Double Hydroarylation and Cationic Cyclization of Diyne Diethers and Diamine

,

Selective Copper-Catalyzed Intramolecular Hydroalkoxylation by a 5-endo Mode

,

Efficient Isomerization of Kinetic Enol Derivatives Catalyzed by Trifluoromethanesulfonic Acid