Title compounds possessing a variety of substituents are systematically prepared by means of Meerwein arylation of benzene-1,4-dione. Synthetic aspects and their MNDO calculation-based interpretation are described.
three dimensions: As a step toward a bottom‐up synthesis of size‐defined carbonnanotubes (CNTs), [3]cyclo‐4′,4′′′′‐hexaphenylbenzenes ([3]CHPBs) were synthesized and investigated. Theoretical and experimental results revealed that [3]CHPBs possess highly twisted [9]cyclo‐p‐phenylene cores. [3]cyclo‐2,11‐(Hexa‐peri‐hexabenzocoronene) ([3]CHBC) was also examined for CNT synthesis (see figure).