A new chiral probe molecule for mono-alcohols is developed by using 1,2-dihydro-1-hydroxy-2,3,1-benzodiazaborine (DAB) bearing an acridine moiety 1. In the presence of mono-alcohols, DAB 1 forms borate 2 by boronic ester formation, followed by coordination of the acridine moiety to the boron atom. Borate 2 has a chiral center on the boron atom and works as a stereodynamic circular dichroism (CD) probe molecule for chiral mono-alcohols based on the π-π interaction between the acridine moiety and the carbon-carbon unsaturated moiety on mono-alcohols.
Keywords: CD probe; benzodiazaborine; boron; chiral mono-alcohols; circular dichroism.
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.