Mr. Daiyue Yang
[n]Circulene is a macrocyclic arene in which a central n-sided polygon is completely surrounded and fused with benzenoids.1 Only four members of this family, circulene (or corannulene), circulene (or coronene), circulene, and circulene have been prepared to date. The shapes of these circulenes change from a bowl (circulene) through a plane (circulene) to a saddle (circulene).
 and circulene are basic structural units of theoretical three-dimensional carbon allotropes of negative curvature, which are known as Mackay crystals or carbon Schwarzites. The next [n]circulene to be synthesized is circulene. This presentation will cover our recent studies toward synthesis of benzannulated circulenes through the Scholl reaction using outward and inward strategies as shown in the figure below.
- a) J. H. Dopper.; H. Wynberg. Tetrahedron Lett. 1972, 13, 763; b) J. S. Siegel.; T. J. Seiders. Chem. Br. 1995, 31, 313;
University: CUHK (SIOC)