The synthesis, X-ray structural analysis, and anomeric effect in trans-3,6-dimethoxy-1,2,4,5-tetroxane

Abstract
The ozonolysis of 1,2-dimethoxyethylene produces trans-3,6-dimethoxy-1,2,4,5-tetroxane which has a chair conformation with diaxial methoxy substituents and carbon–oxygen bond distances characteristic of anomeric and exo-anomeric interactions between the methoxy groups and the ring.