Synthesis of Optically Active Cyclic Compounds, Ribbon‐Shaped and Propeller‐Shaped Compounds, Consisting of Planar Chiral [2.2]Paracyclophane

Two types of optically active cyclic compounds based on planar chiral [2.2]paracyclophane skeleton are synthesized. These compounds comprise tetrasubstituted [2.2]paracyclophanes as chiral crossing units, in which π-conjugated phenylene-ethynylenes are folded to construct ribbon- and propeller-shaped structures. The compounds emit circularly polarized luminescence (CPL) with high anisotropy factors (|g _lum|) and CPL brightness values (B _CPL).

Two types of optically active cyclic compounds based on planar chiral [2.2]paracyclophane skeleton are synthesized. These compounds comprise tetrasubstituted [2.2]paracyclophanes as chiral crossing units, in which π-conjugated phenylene-ethynylenes are folded to construct ribbon- and propeller-shaped structures. The compounds emit circularly polarized luminescence (CPL) with high anisotropy factors (|g _lum|) and CPL brightness values (B _CPL).

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