ChemInform Abstract: Efficient Preparation of 5‐Amino‐4‐cyano‐N‐ (cyclopropylcarbamoyl)‐3‐aryl‐2, 3‐dihydrothiophene‐2‐carboxamide Derivatives (V) Without Using Any Other Catalysts. Issue 52 (24th December 2013) - Gao, Lijiu; Xia, Sheng; Wu, Nan; Tao, Shimin; Feng, Youjian; Rong, Liangce