Question

how we convert benzene into glyoxal​

Answer 1

Answer:

Reductive ozonolysis is the best way to convert benzene into glyoxal and here in first step ozone is reacted to form intermediate ozonide which on further hydrolysed in presence of Zn to form 3 moles of glyoxal . It must be noted that here Zn is used to check the further oxidation of aldehydes into acids