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Your search keyword '"Osiński, Piotr W."' showing total 2 results
Start Over Author "Osiński, Piotr W." Publisher elsevier b.v.
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2. The classical Kagan's amides are still practical NMR chiral shift reagents: determination of enantiomeric purity of P-chirogenic phospholene oxides

Author

Pakulski, Zbigniew, Demchuk, Oleg M., Kwiatosz, Renata, Osiński, Piotr W., Świerczyńska, Wioleta, and Pietrusiewicz, K. Michal

Subjects
*AMIDES, *NUCLEAR magnetic resonance
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. [Copyright &y& Elsevier]

Published
2003
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