Abstract
A series of highly substituted 2-perfluoroalkyl-3-iodoquinolines are prepared by two different methods in good to excellent yields under mild reaction conditions. The first method involves iodocyclization of perfluoroalkyl propargyl imines with I(2)-CAN. The second method involves iodocyclization of perfluoroalkyl propargyl amines using I(2) and ICl. The perfluoroalkyl propargyl amines are prepared in excellent yields via Sonogashira coupling of easily accessible imidoyl iodides with alkynes followed by reduction with NaBH(3)CN. The scope of this methodology is extended by using the resulting 2-perfluoroalkyl-3-iodo quinolines in Suzuki, annulation, dehalogenation and carboxylation reactions. Antimalarial activity of the 2-perfluoroalkyl-3-iodoquinolines is discussed.
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