Asymmetric Transfer Hydrogenation of 3-(Trifluoromethyl)quinolines

A chiral phosphoric acid-catalyzed asymmetric transfer hydrogenation of 3-(trifluoromethyl)quinolines was successfully developed with up to 98% ee. The new method provides a direct and facile access to chiral 2,3-disubstituted 1,2,3,4-tetrahydroquinoline derivatives containing a stereogenic trifluoromethyl group.