ChemInform Abstract: Base‐Catalyzed Intramolecular 5‐exo‐dig Cyclization of 2‐Propynyl‐1, 3‐dicarbonyl Compounds: An Atom‐Economic Route to Stereodefined 2‐Methylene‐2, 3‐dihydrofurans. Issue 8 (February 2015) - Ma, Quan; Wang, Yeming; Zhao, Yuegang; Liao, Peiqiu; Sun, Bo; Bi, Xihe