Three enantiopure fluorous thioureas featuring a free–NH2 group were synthesized by direct addition of aromatic isothiocyanates bearing a single n-C8F17 substituent in the ortho, meta and para position, respectively, to enantiopure (1R, 2R)-1, 2-diaminocyclohexane. The catalytic behavior of these bifunctional molecules was assessed in representative Michael- type reactions. The three fluorous thioureas performed similarly in all the reactions tested, ...
