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Keywords:

  • annulenes;
  • cyclophanes;
  • dimerizations;
  • liquid crystals;
  • photochemistry
Thumbnail image of graphical abstract

The photocyclodimerization of areno-condensed [18]annulenes with alkoxy side chains leads to novel beltlike cyclophanes (schematic representation on the right). For derivatives with certain substitution patterns the “monomers” form columnar, photoreactive liquid crystals.