Question

convert benzonitrile to acetophenone

Answer 1

Benzonitrile + CH3MgBr in the presence of dry ether and the subjected to hydrolysis gives acetophenone

Answer 2

Welcome dear,

● Benzonitrile to acetophenone -
- Benzonitrile is first treated with Grignard reagent (CH3MgBr) in presence of dry ether that gives addition product which on acidic hydrolysis yields acetophenone.

C6H5-CN + CH3MgBr ---> C6H5-(CH3)C=NMgBr
C6H5-(CH3)C=NMgBr ---> C6H5-CO-CH3 + Mg(OH)Br + NH3

[Refer to image for better understanding]

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