Abstract
AbstractThe equilibrium adduct from the Michael reaction between lithium dimethylphenylacetamide enolate and methyl cinnamate has been studied by means of 7Li, 13C and 1H NMR and IR spectroscopy as well as by electrical conductivity measurements in THF and diethyl ether. The 7Li NMR and the electrical conductivity measurements data are consistent with a triple ion structure of [A−M+A−]− M+ type, favoured in THF. All other spectral data support an intramolecular chelation in the triplet fragment.
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