Inner-Bond Cleavage of Sterically Congested Dibenzo[ g , p ]chrysene to a Rigid Figure-Eight Macrocycle

positions of the biaryl subunits enhance structural rigidity, resulting in its robust chirality and enhanced emission in its π-extended derivatives. In addition, methyl substitution provides synthetic advantages by shortening the bond-cleavage step and enabling regioselective C-H borylation.