Answer:
Hello dear,
● Benzene to benzaldehyde -
There are several ways to convert benzene into benzaldehyde.
1) Riemer-Tiemann reaction -
- In this reaction, benzene is converted to benzaldehyde with the help of CHCl3 & NaOH.
C6H6 ---> C6H5-CHO
Catalyst - CHCl3 & NaOH
2) Gatterman-Koch reaction -
- In this reaction, benzene is converted to benzaldehyde with the help of CO/HCl & AlCl3/CuCl.
C6H6 ---> C6H5-CHO
Catalyst - CO/HCl & AlCl3/CuCl
[Refer to image attachment for better understanding.]
Hope this helps...
Explanation: