Molozonide
A molozonide is a cyclic molecule containing a five-membered ring consisting of two adjacent carbon atoms and three adjacent oxygen atoms. They are thus cyclic disubstituted trioxidane derivatives. Molozonides are formed by cycloaddition of ozone and an alkene during ozonolysis, as a transient intermediate which quickly rearranges to give the ozonide, the relatively stable product generated immediately prior to reductive or oxidative cleavage to form alcohols, carbonyl compounds, or derivatives thereof.