| Abstract: | A synthesis of multiply arylated naphthalenes and anthracenes with eight different substituents has been accomplished. The key intermediates are tetraarylthiophene S ‐oxides, which are synthesized through a method involving sequential C?H arylation and cross‐coupling from 3‐methoxythiophene, followed by oxidation of the sulfur atom. The resulting tetraarylthiophene S ‐oxides can be converted into a tetraaryl benzynes or naphthalynes and then merged through 4+2] cycloaddition reaction with another tetraarylthiophene S ‐oxide, thereby resulting in the programmed synthesis of octaarylnaphthalenes and octaarylanthracenes. |
