The invention submitted concerns the use of urine of the general formula (I), in which R has the meaning described in the text,as a chiral solvent for the determination of the enantiomer purity of chiral sulphoxides by means of.sup.1.n.H -NMR analysis.CIBULKA RADEK...
The invention submitted relates to a method of determining the enantiomeric purity of chiral sulfoxides using 1H-NMR analysis utilizing urea of general formula I wherein R has the meaning described in the text as a chiral solvating agent.ROMAN HOLAKOVSK...
the invention relates to the use of \\ufeffp\\u0159edkl\\u00e1dan\\u00fd urea of general formula (i) in which r has the meaning as described in the text, as chir\\u00e1ln\\u00edho reagent for the determination of the purity of solvata\\u010dn\\u00edho enantiomern\\u00ed chir\...
enantiomeric excess; Raman optical activity; Raman spectroscopy; vibrational optical activity; vibrational circular dichroism; optical activity; optical purity; α-pinene; alanine1. Introduction Chiroptical spectroscopy involves spectroscopic techniques based on the differences in the interactions of left- and ...
Polarimetry measurements at 589 nm, routine analyses for determining the optical purity of chiral organic compounds, suggest this may be the case, as enantiopure (>98%) samples of the same enantiomer of alanine, valine, norvaline, 2,3-diaminopropanoic acid, and 2-aminobutanoic acid all rotate ...