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Substituent effects on 13C chemical shifts of alkyl-substituted 4-oxo-1,3-dioxolanes and 5-oxo-1,3-oxathiolanes

✍ Scribed by Kalevi Pihlaja; Kyllikki Rossi; Timo Nurmi

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
94 KB
Volume
46
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The ^13^C NMR chemical shifts for 4‐oxo‐1,3‐dioxolane (1) and its all methyl‐substituted derivatives (2–10) as well as for 5‐oxo‐1,3‐oxathiolane (11) and its nine alkyl‐substituted derivatives (12–20) are reported. The magnitude and variety of the substituent effects are in accordance with the envelope conformations in which the oxygen or sulfur atom locates at the tip of the envelope as postulated on the basis of earlier data. Copyright © 2007 John Wiley & Sons, Ltd.

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