Benzonitrile can be prepared from benzaldehyde on treatment... | Chemistry | SolveeIt

Question

Benzonitrile can be prepared from benzaldehyde on treatment with

$NH_3$

$NH_3$ followed by hydrogenation with Ni

$NH_2OH$

$NH_2OH$ followed by dehydration with acetic anhydride

Answer

$NH_2OH$ followed by dehydration with acetic anhydride

Explanation

Solution

Benzonitrile can be prepared from benzaldehyde on treatment with $NH _{2} OH$ followed by dehydration with acetic anhydride. This reaction occur via Beckmann rearrangement.

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For benzonitrile formation, the key step is a hydride shift followed by deprotonation of nitrogen that ultimately gives benzonitrile

Chemistry Question on Aldehydes, Ketones and Carboxylic Acids

Solution