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Solution:
O-xylene, when subjected to ozonolysis, undergoes cleavage of its double bonds, resulting in the formation of smaller molecules. Ozonolysis is a reaction where ozone (O₃) reacts with alkenes or alkynes to break them down into carbonyl compounds.
Ozonolysis of O-xylene:
- O-xylene has two methyl groups attached to a benzene ring at the ortho positions (1,2 positions).
- When o-xylene undergoes ozonolysis, the double bonds in the aromatic ring are cleaved.
- This reaction results in the formation of two molecules of glyoxal (CHO-CHO), a simple dialdehyde.
Reaction:
C6H4(CH3)2 + 3O_3 - 2(CH_2O_2) + 2CO_2
Products:
- Glyoxal (CHO-CHO)
- Carbon dioxide (CO₂)
In summary, o-xylene on ozonolysis gives glyoxal and carbon dioxide as the main products.
