The conformational analysis of saturated heterocycles. Part XLI. cis-trans-Equilibria of 4-thia- and 4-oxa-analogues of 2,6-dimethylcyclohexanone
Abstract
The properties and equilibration of the title compounds are described. The cis-trans equilibrium in 2,6-dimethyl-cyclohexanone itself is little affected by solvent. The results are discussed in terms of 1,3-diaxial steric interactions and are shown to support the low steric requirements of lone pairs when the probe is a methyl group.