Addition of hydrogen cyanide (HCN) to carbony | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The addition of $HCN$ to carbonyl compounds is a nucleophilic addition reaction.In this reaction,the cyanide ion $(CN^-)$ acts as the nucleophile.

Vedclass · Accepted Answer

Accelerated by addition of base

Vedclass · Answer

(A) The addition of $HCN$ to carbonyl compounds is a nucleophilic addition reaction.In this reaction,the cyanide ion $(CN^-)$ acts as the nucleophile.Since $HCN$ is a weak acid,it does not dissociate significantly to provide $CN^-$ ions.Adding a base (like $OH^-$) helps in the deprotonation of $HCN$ to generate a higher concentration of $CN^-$ ions $(HCN + OH^- \rightarrow CN^- + H_2O)$.Therefore,the presence of a base increases the rate of the reaction by increasing the concentration of the nucleophile.

Addition of hydrogen cyanide $(HCN)$ to carbonyl compounds is:

Similar Questions

Which of the following on reaction with Grignard reagent followed by hydrolysis forms a secondary alcohol?

$A$ and $B$ are isomers. Identify $B$.

Addition of alcohols to aldehydes in the presence of anhydrous acids yields:

Geminal diols (compounds with two $-OH$ groups on the same carbon atom) are generally unstable. However,which of the following is stable?

What are the correct products of the following reaction?
$CH_3CH_2COCH_3 \xrightarrow{NaOCl} \text{Products}$

Vedclass Test Series

Exam Paper Generator

Online Exam Module