Benzophenone is produced by the acylation of benzoyl chloride with an excess of benzene. It may also be formed by atmospheric oxidation of diphenylmethane.
How will you prepare benzophenone by Friedel Crafts?
Answer: It can also be prepared by Friedel-Crafts acylation of benzene with benzoyl chloride in the presence of a Lewis acid (e.g. aluminium chloride) catalyst. Solubility in organic solvents: 1 g/7.5 mL in ethanol; 1 g/6 mL in diethyl ether.
How is benzaldehyde converted to benzophenone?
Convert benzaldehyde to benzophenone
- use KMnO4 to convert it into benzoic acid.
- react benzoic acid with SOCl2 to get C6H5Cl.
- react C6H5Cl with anhydrous AlCl3 to get benzophenone.
