초록 |
Polyaromatics such as coronene, perylene, and fullerene as organic semi-conductors have long been investigated owing to inherent self-assembly or large electron affinity. Diels-Alder synthesis leading carbon annulations has often been adapted for the polycyclic systems, which undergoes without assisting reagents or functional groups. Recently, perylene bisimide was derived to make pi-conjugated ladder oligomers through palladium-catalyzed coupling reaction and dimerization only occurred on a bay site of perylene derivatives. We have attempted to oligomerize perylene bisimide using Diels-Alder reaction with novel designed perylene bisimide. The use of soluble monomer is anticipated to increase solubility of final adduct, which is advantageous for the application such as bulk-heterojunction OPV. Since a cyclic adduct derivative on both perylene bays is not prepared to date in spite of being a versatile intermediate, new synthetic methods are desired. |