Formation of porphyrins in the presence of acid-labile metalloporphyrins: a new route to mixed-metal multiporphyrin arrays.

摘要: The ability to incorporate distinct metalloporphyrins at designated sites in multiporphyrin arrays is essential for diverse applications materials and biomimetic chemistry. synthesis of such mixed-metal via acid catalyzed reactions has largely been restricted stability class II (e.g., Cu, Co, Ni) or I. We describe routes the rational acid-catalyzed condensations that are compatible with III Zn) IV Mg). demonstrated p-phenylene-linked arrays. key finding several mild Lewis acids [InCl3, Sc(OTf)3, Yb(OTf)3, Dy(OTf)3], which known catalyze dipyrromethane + dipyrromethane−dicarbinol condensation CH2Cl2 room temperature without acidolysis, do not demetalate zinc magnesium porphyrins under same conditions. Rational porphyrin dyads triads employ reaction a (porphyrin)−dipyrromethane (porphyrin)−dipyrr...