Expeditious Synthesis of Trifluoromethylated Heterocycles: Noncatalytic 1,3-Dipolar Cyclization of Azomethine Imines with (α-Trifluoromethyl)acrylates - Ogawa, Shinichi; Nishimine, Takayuki; Tokunaga, Etsuko; Shibata, Norio (Synthesis, 2010)