A diastereoselective process induced in a curved aromatic molecule: oxidation of thioether-substituted subphthalocyanines

Different sulfoxide-substituted subphthalocyanines have been synthesized by oxidation reaction of the corresponding thioether precursors. We have observed for the first time that when the oxidation takes place close to the macrocyclic core, the intrinsically chiral subphthalocyanine can induce a high degree of diastereoselectivity in this process.