A Simple and Convenient Copper-Catalyzed Tandem Synthesis of Quinoline-2-carboxylates at Room Temperature.

J Org Chem. 2009 Jul 2; Huang H, Jiang H, Chen K, Liu HWe developed a simple and convenient copper-catalyzed method for the synthesis of quinoline-2-carboxylate derivatives through sequential intermolecular addition of alkynes onto imines and subsequent intramolecular ring closure by arylation. The efficiency of this system allowed the reactions to be carried out at room temperature.