Synthesis of 4-Dialkylamino-6-Trifluoromethyl-5,6-dihydro-2-pyridinones via Cyclization of Enamines with α-Chloro-β,β,β-trifluoroethylisocyanates - Volochnyuk, Dmitriy M; Kostyuk, Aleksandr N; Bol’but, Andrei V; Sibgatulin, Dmitriy A; Kuklya, Andrei S; Vovk, Mikhail V (Synthesis, 2004)