학술논문
Determination of the enantiomeric composition of chiral delta-2-thiazolines-1,3 by 1H and 19F NMR spectroscopy using chiral solvating agents
Document Type
Article
Source
Journal of Spectroscopy; 2006, Vol. 20 Issue: 1
Subject
Language
ISSN
23144920; 23144939
Abstract
Studies of the perturbing effect of chiral solvating agents (CSAs) namely the fluoroalcohols 5a and 5b upon the NMR spectra of chiral ?2-thiazolines 1 presenting interesting insecticidal properties demonstrated the ability of these CSAs to afford diastereomeric solvates from these substrates providing their enantiomeric discrimination. Thus, for five of the six tested ?2-thiazolines 1A and 1B there is at least one possibility to proceed to their enantiomeric discrimination either by 1H or 19F NMR using mostly 5b as CSA.