ChemInform Abstract: Synthesis of 2‐Amino‐3‐cyano‐4H‐chromen‐4‐ylphosphonates and 2‐Amino‐4H‐chromenes Catalyzed by Tetramethylguanidine. Issue 16 (22nd April 2014) - Kalla, Reddi Mohan Naidu; Byeon, Seong Jin; Heo, Min Seon; Kim, Il