Chemistry of the SO Bond. 8—A stereochemical investigation of some methyl-substituted trimethylene sulphites (1,3,2-Dioxathian 2-Oxides) via13C nuclear magnetic resonance
摘要:
Abstract13C NMR chemical shifts for trimethylene sulphite and 35 derivatives are presented. From the magnitudes of the β shifts it has been possible to establish chemical shift additivity relationships for a series of compounds. The results are discussed in terms of probable conformations in solution.