SYNTHESIS AND STRUCTURAL-PROPERTIES OF THE FIRST DODECAKIS(ARYLOXY)TRIPHENYLENES

Dodecaethers 1-3, members of a new class of molecule, were prepared by persubstitution of perfluorotriphenylene 4 by the appropriate phenola te nucleophiles in 1,3-dimethylimidazolidin-2-one (DMEU) as solvent. A n exactly C-2-symmetric conformation has been established by X-ray ana lysis for dodecakis(p-tolyloxy)triphenylene 2 in its molecular crystal , whilst counterpart 3, possessing the more extended p-phenylphenoxy s ide-chain, is a new host capable of forming crystalline inclusion comp ounds with guest species such as acetonitrile, and di-, tri-, and tetr a-glyme, for example. (C) 1997 Elsevier Science B.V.