Benzaldehyde can be obtained from benzal chloride, Write reactions for obtaining benzal chloride and then benzaldehyde from it.
It is the commercial method for preparing benzaldehyde. Benzal chloride can be oblained by photochtorination of toluene i.e., chlorination of toluene in presence of sunlight. Then, benzal chloride on heating with boiling water produces benzaldehyde as shown below.
