Characterization and enantiomer separation of indene-derived hexacyclic hydrocarbon and its application as a chiral source

A bstract A hexacyclic chiral aromatic hydrocarbon (1), obtained by the reaction between indene and cyclopentadiene, has been characterized, and its enantioseparation has been achieved by the combination of stereoselective complexation with β-cyclodextrin and recrystallization. This method has been applied in the large-scale production of both pure enantiomers of 1. Enantiopure 1 and its derivatives have been used as chiral dopants in nematic liquid crystals.