Jiang Xiang-dong, Su Ke-man
2000
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Journal
Chinese Journal of Spectroscopy Laboratory
Abstract
Rotundine was used as chiral auxiliary for NMR analysis of racemic carboxylic acids and it turned out to be an effective chiral solvating agent(CSA).The effect of stoichiometry and concentration on the observed shift non equivalence was studied.The efficiency of rotundine and ( S) (-) α phenylethylamine as CaAs for the determination of the enantiomeric composition of carboxylic acids in the solvents of CDCl 3 and C 6D 6 was compared,respectively.