Carbon-13 nuclear magnetic resonance studies of sulfur heterocycles. Evidence for intramolecular 1, 3 electronic interaction in 3, 3-disubstituted 2H- …

JR DeMember, RB Greenwald…

Index: DeMember,J.R. et al. Journal of Organic Chemistry, 1977 , vol. 42, # 22 p. 3518 - 3522

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Citation Number: 9

Abstract

Carbon-13 nuclear magnetic resonance (13C NMR) spectra of several mono-and disubstituted ZH-tetrahydrothiapyrans and dithianes have been recorded and assigned. The compounds studied provide a series which is amenable to correlation by the additivity of substituent effects in l3C NMR spectroscopy. The A& between calculated and observed 13C NMR shifts provided a sensitive probe for substituent-substituent interactions in ...