NMR Study on Oxazolidne Derivatives of 1,4:3,6-Dianhydro-D-Fructose

In this study,some new oxazolidine derivatives were prepared from 1,4:3,6-dianhydro-D-fructose.Because of many same structural units in these compounds,the chemical environment of these compounds was extremely similar.The structures of these oxazolidines were evaluated with 1D and 2D NMR spectroscopy(1H NMR,13C NMR,DEPT-135,1H-1H COSY,HSQC,HMBC) and HRMS spectra.1H NMR and 13C NMR chemical shifts of these compounds were assigned.The stereochemistry of these compounds was established by the results obtained from X-ray crystal analysis of the relative compounds and NOESY spectroscopy.