Synthesis of Pyrrole‐Sharing Fused Porphyrinoid Hybrids by Post‐fabrication of Ni(II) Porphyrins

Abstract Pyrrole‐sharing fused hybrids of Ni II porphyrin with Pd II N‐confused(NC)‐corrole and Pd II NC‐oxaporphyrin were synthesized by post‐fabrication of Ni II porphyrins. Specifically this consists of Friedel–Crafts type aromatic substitution reaction of meso ‐free Ni II porphyrin with α , α ′‐dibromotripyrrin and Pd(OAc) 2 assisted cyclization, and final heating to induce a Pd−C bond formation. Ni II porphyrins fused with Pd II NC‐corrole and with Pd II NC‐oxaporphyrins show coplanar structures with a shared pyrrole unit. In these hybrids, the Pd II NC‐oxaporphyrin is aromatic and the Pd II NC‐corrole is moderately antiaromatic and these local electronic properties interact to influence the whole network.