Z. Pakulski, O. Demchuk, Renata Kwiatosz
Jun 6, 2003
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Influential Citations
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Journal
Tetrahedron-asymmetry
Abstract
Abstract Application of the (S)-(+)-N-(3,5-dinitrobenzoyl)-1-phenylethylamine 1 and (S)-(+)-N-(3,5-dinitrobenzoyl)-1-(1-naphthyl)ethylamine 2 as chiral NMR shift agents for a variety of phospholene derivatives is described. 1H and 31P NMR spectra recorded in the presence of Kagan's amides 1 or 2 show well resolved signals of vinylic protons as well as 31P signals and allow effective measurement of the enantiomeric excesses. The experimental rule for determination of the absolute configuration at P is also proposed.