Question

How we can convert cyano benzene to benzaldehyde??

Answer 1

Answer:

• As we know that we can convert Cyanobenzene to Benzaldehyde by Stephen’s reduction method.
• Thus Alkyl nitriles are reduced by Tin Chloride [Sn2Cl] and Hydrochloric acid [HCl].
• Further it forms an intermediate which further undergoes hydrolysis with water and results in a aldehyde.
• The reaction is as follow,$C_6H_5 -\:C\equiv N - > (SnCl_2+hcl)\: C_6H_6 -CH\equiv NH.HCl - > (h_2 0) C_6H_5 - CHO + NH_4Cl$
• Therefore we get get the by-product of Ammonium Chloride.

Hence we can convert cyano benzene to benzaldehyde by Stephen’s reduction method.

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