Carbon-13 nuclear magnetic resonance spectra of saturated heterocycles. 3. 1, 3-Dithianes

EL Eliel, VS Rao, FG Riddell

Index: Eliel,E.L. et al. Journal of the American Chemical Society, 1976 , vol. 98, # 12 p. 3583 - 3590

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Citation Number: 55

Abstract

Abstract: 13C NMR spectral data of 56 1, 3-dithianes are reported. Substituent parameters for alkyl groups at C-2. C-4, C-5, and C-6 acting at C-2, C-4, C-5, and C-6 are evaluated by multiple linear regression analysis. The dithiane parameters are qualitatively similar to those in 1, 3-dioxane and cyclohexane except for the a-axial effect ofa methyl group at C-5 which is upfield rather than downfield shifting, Also, the relative shifts of methyl substituents at C- ...