High Quality Content by WIKIPEDIA articles! Ozonolysis is the cleavage of an alkene or alkyne with ozone to form organic compounds in which the multiple carbon-carbon bond has been replaced by a double bond to oxygen. The outcome of the reaction depends on the type of multiple bond being oxidized and the workup conditions.Alkenes can be oxidized with ozone to form alcohols, aldehydes or ketones, or carboxylic acids. In a typical procedure, ozone is bubbled through a solution of the alkene in dichloromethane at 78 °C until the solution takes on a characteristic blue color. This indicates consumption of the olefin. A reagent is then added to convert the intermediate ozonide to a carbonyl derivative.