A new reagent for a very simple and efficient determination of enantiomeric purity of alcohols by 31P NMR

A new reagent is described for the determination of enantiomeric excess of chiral alcohols. This derivatizing agent allows an accurate analysis by 31P NMR. A large array of primary, secondary, and tertiary alcohols, functionalized or not, were successfully tested. Reagent 7 is easy to prepare and reacts alone with the chiral alcohol, at room temperature, eventually directly in the NMR tube