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Langhals, H., Hofer, A., Bernhard, S., Siegel, J.S. and Mayer, P. (2011) Axially Chiral Bichromophoric Fluorescent Dyes. The Journal of Organic Chemistry, 76, 990-992.
https://doi.org/10.1021/jo102254a

has been cited by the following article:

• TITLE: A Concept for a Novel Test for Chemical Parity

  AUTHORS: Heinz Langhals, Oswald Krotz

  KEYWORDS: Chirality, Parity, Circular Dichroism, UV/Vis Spectroscopy, Racemates

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.8 No.4, October 29, 2018

  ABSTRACT: Deviations from chemical parity (PV) were evaluated with the search for very small enantiomeric excesses in a racemate prepared from non chiral materials and were detected by means of the circular dichroism (CD). Thus, intensely light-absorbing perylenebiscarboximides were attached to axially chiral biphenyls for the amplification of CD effects by exciton interactions of the adjacent chromophores. A rapidly racemising system was applied for the exclusion of artifacts and compared with an analogous with locked chirally. A very slight enantiomeric excess was detected for the (M) enantiomer. Application of the method for other systems was suggested and relations to natural products discussed.