Question

Preparation of benzophenone from benzaldehyde

Answer 1

You do a Grignard reaction followed by an oxidation.

Explanation:

➡️Step 1: benzaldehyde + phenylmagnesium bromide → diphenylmethanol

➡️Step 2: diphenylmethanol + chromyl chloride → benzophenone

You can use any reagent that converts a secondary alcohol to a ketone.

These include acidified potassium dichromate, pyridinium chlorochromate, and chromyl chloride.

Answer 2

Answer:

use KMnO4 to convert it into benzoic acid.

react benzoic acid with SOCl2 to get C6H5Cl.

react C6H5Cl with anhydrous AlCl3 to get benzophenone.