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Oxygen-17 nuclear magnetic resonance spectral investigation of 3-alkoxy-trans-3,4-disubstituted-thiolane 1,1-dioxides and related compounds

✍ Scribed by Tarek H. Sammakia; David L. Harris; Slayton A. Evans Jr.

Book ID: 102950962
Publisher: John Wiley and Sons
Year: 1984
Tongue: English
Weight: 552 KB
Volume: 22
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270221203

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✦ Synopsis

The "0 NMR spectra of 3-alkoxythiObe 1,l-dioxides indicate that the sulfonyl oxygens are diastereotopic but their chemical shift difierences are essentially independent of the structure of the a&yl group in the alkoxy moiety. Eu(fod), enhances the "0 chemical shift ditference between the diastereotopic sulfonyl oxygens in 3-isopropoxythiolane 1,l-dioxide and shifts both oxygens upfield. a,p-Unsaturation deshields the sulfonyl oxygens in both five-and six-membered rings.

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