Abstract
A series of functionalized porphyrins were prepared to show their potential for the models of various types of receptors. Atropisomerization was controlled by the combination of meso substituents and β-substituents. Chiral porphyrins were also prepared according to several different approaches. Molecular recognition functions of these functional porphyrins are also described. Perfluoroalkylporphyrins showed characteristic oxidation potential and can serve as a 19F NMR probe. They are applied to anovel catalyst and to the study of heme-protein interactions.