19F-NMR ANALYSES OF SOME CYCLOPROPANE DERIVATIVES

Article abstract of DOI:10.1016/S0022-1139(00)82326-X

Structural assignments of all possible diastereomers of 1-chloro-2-ethoxy-1-fluoro-alkylcyclopropanes have been achieved through their 19F-NMR spectra.The previously unreported effect of an ethoxyl group on the fluorine signal has been studied and found to promote in most cases a shielding effect in the vicinal cis-fluorine and a deshielding effect when trans to this halogen.