The Intramolecular Edge-to-Face Interactions of an Aryl CH Bond and of a Pyridine Nitrogen Lone-Pair with Aromatic and Fluoroaromatic Systems in Some [3,3]Metaparacyclophanes: A Combined Computational and NMR Study
Having the edge on aromatic–aromatic interactions: Model systems containing aromatic, fluoroaromatic, and heteroaromatic residues arranged in an edge‐to‐face disposition have been synthesized (see figure). Investigation of their structures and stereodynamic behavior shows a favorable interaction between an “edge” ring featuring a pyridine nitrogenlonepair and a perfluorinated “face” ring.