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Abstract:
The combination of liquid chromatography (HPLC), UV/Vis-spectroscopy and circular dichroism (CD) can be used to construct a high-throughput screening system to determine the enantioselectivity of enzyme- or metal-catalyzed reduction of acetophenone with formation of (S)- and (R)-1-phenylethanol. Prerequisite for the viability of this system is the experimental finding that the anisotropy factor g is linearly related to the enantiomeric excess (ee) and that it is independent of concentration, thereby excluding possible aggregation effects.