Question

convert benzaldehyde to benzophenone

Answer 1

1. use KMnO4 to convert it into benzoic acid
2.react benzoic acid with SOCl2 to get C6H5Cl
3.react C6H5Cl with anhydrous AlCl3 to get benzophenone

Answer 2

Answer: The conversion is given below.

Explanation:

The above conversion is carried out in various steps:

Step 1: Converting benzaldehyde to benzoic acid

When benzaldehyde is oxidized in the presence of acidified potasium permanganate, it results in the formation of benzoic acid.

Step 2: Converting benzoic acid to benzene

When benzoic acid is reacted with soda lime (mixture of NaOH and CaO) with heat, it results in the formation of benzene.

Step 3: Converting benzene to benzophenone

When benzene is treated with benzoyl chloride in the presence of $AlCl_3$, it leads to the formation of benzophenone. This reaction is known as Friedel-Craft acylation.

The equations for the above conversions is given in the image attached below.