Crystal structure, proton magnetic resonance spectra, and conformational analysis of 1, 4-diphenyl-1, 4-dithiabutane 1, 4-dioxides and related Meso/dl and Erythro/ …

AL Ternay Jr, J Lin, T Sutliff, SSC Chu…

Index: Ternay,A.L. et al. Journal of Organic Chemistry, 1978 , vol. 43, # 15 p. 3024 - 3031

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Citation Number: 10

Abstract

The x-ray structures for meso-and dl-1, 4-diphenyl-1, 4-dithiabutane 1, 4-dioxide are presented. The meso isomer has a center of symmetry in the solid state. Analysis of 'H NMR spectra of a series of dl isomers indicates that the anti conformer is present in about 75%. The erythro and threo isomers of l-phenyl-4-(4-methylphenyl)-1, 4-dithia-butane 1, 4-dioxide exhibit the same anomalous IH NMR spectra (erythro, Aq; threo, AA'BB') as do similar ...