Structures and inclusion properties of racemic and enantiopure dimethyl and diphenyl 9,9′-bianthryl-2,2′-dicarboxylates

The authors prepared the dimethyl and diphenyl esters of 9,9′-bianthryl-2,2′-dicarboxylic acid in racemic and enantiopure (M) forms. The enantiopure dimethyl ester forms inclusion compounds with various organic compounds such as benzene, methanol, phenol, and aniline whereas the racemic form does this only with benzene. No guest molecules are included by the racemic and enantiopure diphenyl esters. These effects of substituents and homochirality on the inclusion properties are discussed on the basis of X-ray structures of some inclusion and guest-free compounds. Chirality, 2008. © 2007 Wiley-Liss, Inc.