The 13C NMR spectra of a series of 5,6-epoxides in decalinic systems were studied. The interpretation of the chemical shifts allowed us to formulate an empirical rule to predict the epoxide stereochemistry. A discussion of the scope and limitations of this method and its extension to larger carbon skeletons is also presented.Key words: epoxide stereochemistry, 13C NMR, NMR, decalinic systems, oxiranes.
Determination of the Conformation of Substituted 4,6-Dioxo-1,3-dioxanes. Part III. 13C NMR Chemical Shifts, 13C,H Coupling Constants and Spin-lattice Relaxation Times of 2-, 2,2-, 2,5-, and 2,2,5-Substituted Derivatives.
