The 220 MHz NMR spectra of phytosterols

The 220MHz NMR spectra of forty two steroids are reported. Eight pairs of C-24 epimers (24α- and 24β) and two pairs of double bond isomers ( cis and trans) can be distinguished by this technique. The influence of substituents, solvents and stereochemistry on methyl group chemical shifts is discussed...

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Bibliographic Details
Published inPhytochemistry (Oxford) Vol. 15; no. 1; pp. 195 - 200
Main Authors Rubinstein, Ian, Goad, L.John, Clague, A.D.H., Mulheirn, Lawrence J.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 1976
Subjects
identification of C-24 epimers
Nuclear magnetic resonance
phytosterols
phytosterols
identification of C-24 epimers
Nuclear magnetic resonance
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Summary:The 220MHz NMR spectra of forty two steroids are reported. Eight pairs of C-24 epimers (24α- and 24β) and two pairs of double bond isomers ( cis and trans) can be distinguished by this technique. The influence of substituents, solvents and stereochemistry on methyl group chemical shifts is discussed.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(00)89083-4