When ozone reacts with unsaturated hydrocarbons, the products formed are called:
A
ozonites
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
ozonides
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
carbazone
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
unsaturated ozone
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A ozonides
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 methanol at −78 °C until the solution takes on a characteristic blue color, which is due to unreacted ozone. This indicates complete consumption of the alkene. Ozonolysis of alkynes generally gives an acid anhydride or diketone product, not complete fragmentation as for alkenes. A reducing agent is not needed for these reactions. The exact mechanism is not completely known. If the reaction is performed in the presence of water, the anhydride hydrolyzes to give two carboxylic acids.