## Abstract The ^13^C NMR spectra of 17 methyl‐ and ethyl‐substituted tetrahydrofurans and 58 alkyl‐ and aryl‐ substituted 1,3‐dioxolanes are reported. For the cases in which substituents recur, additive substituent parameters are calculated and compared with similar parameters in cyclopentanes and
Carbon-13 n.m.r. spectra of saturated heterocycles. Part VII—Thianium Salts
✍ Scribed by Rodney L. Willer; Ernest L. Eliel
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- English
- Weight
- 929 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
The ^13^C n.m.r. spectra of 53 thianium, S‐methylthianium, S‐alkylthianium and S‐methyl‐1‐thiadecalinium salts, most of them substituted with methyl groups in the ring, have been recorded. The chemical shifts of the ring carbons in these thianium and S‐methylthianium salts and the S‐methyls in the S‐methylthianium salts have been analyzed in terms of additive parameters of the methyl substituents which are compared to those previously determined for the parent thianes. Comparison is also made with other charged species.
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