Palladium-Catalyzed Cross-Coupling Reactions of 1,2-Diiodoalkenes with Terminal Alkynes: Selective Synthesis of Unsymmetrical Buta-1,3-diynes and 2-Ethynylbenzofurans - Liang, Yun; Tao, Li-Ming; Zhang, Yue-Hua; Li, Jin-Heng (Synthesis, 2008)