Cyclic Diplatinum Complex with a Tröger's Base Ligand and Reductive Elimination of a Highly Strained Ring Molecule

Abstract

The cover picture shows the structures of Tröger's base derivatives in this study. Tröger's base has a compact molecular structure with two chiral nitrogen atoms (upper left). A cyclic diplatinum complex with C-bonded Tröger's base ligand is synthesized and characterized (lower left). This complex undergoes reductive elimination of the cyclic dimer of Tröger's base (bottom right). Due to the conjugated biphenylene groups, the molecule contains the angle between the aromatic planes of Tröger's base, 65–66°, which is much smaller than those previously reported for Tröger's base derivatives (88–114°) (https://doi.org/10.1002/zaac.202100085).