Aromatic and Antiaromatic Gold(Ⅲ) Hexaphyrins with Multiple Gold-Carbon Bonds

摘要

Au(Ⅲ) metalation of 1 led to the formation of all-in-plane Au(Ⅲ) complexes 2 and 3 via the C-H bond activation of the inner β-protons. Two-electron reduction of the aromatic complexes 2 and 3 provided the antiaromatic complexes 4 and 5 that exhibit distinct paratropic ring currents. The complex 2 serves as a nice platform for construction of a mixed bis-metal complex. Our efforts are directed toward this possibility using a variety of transition metals.