Synthesis of [2.2](3,6)Phenanthrenophanediene.

Dianion and Tetraanion of [24] Paracyclophanetetraene—New Unusual Perimeter Systems

“…Reaction of (2) and (3) with methanol affords, respectively, diprotonated and muItiprot~nated~~' products in which olefinic double bonds are hydrogenated.…”

Substituted Tetraoxa[8]circulenes - New Members of the Liquid Crystal Family

“…[3,4] Discotic liquid crystals are interesting candidates for molecular wires [5] for nanoscale electronics, sensors, [6] components for solar cells [7] or components for LED display applications. [8] One of the missing links [9] in the circulene family is [8]circulene ( Figure 1), which has been predicted to be aromatic [10] but nonplanar possessing a D 2d symmetry. [11] However, the corresponding oxygen analogue has been known for a number of years, [12] although an investigation of the properties of the tetraoxa [8]circulenes has so far been hampered by the extremely low solubility of the few derivatives known.…”

Theory of Coronoid Hydrocarbons

“…3,°3 , has been synthesized (Yamamoto et al 1983). A synthesis of [8]~eutene has been attempted (Thulin and Wennerstrom 1976). …”