Alkyl cyanides,when reacted with a Grignard r | vedclass

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

Question

(B) The reaction of an alkyl cyanide $(R-CN)$ with a Grignard reagent $(R'-MgX)$ proceeds as follows:$1$. Nucleophilic attack of the Grignard reagent

Vedclass · Accepted Answer

Ketone

Vedclass · Answer

(B) The reaction of an alkyl cyanide $(R-CN)$ with a Grignard reagent $(R'-MgX)$ proceeds as follows:$1$. Nucleophilic attack of the Grignard reagent on the carbon atom of the cyanide group forms an imine intermediate: $R-C \equiv N + R'-MgX \rightarrow R-C(R')=N-MgX$.$2$. Subsequent acid hydrolysis of this intermediate yields a ketone: $R-C(R')=N-MgX + H_2O \rightarrow R-CO-R' + NH_3 + Mg(OH)X$.Therefore,the final product obtained is a ketone.

Alkyl cyanides,when reacted with a Grignard reagent followed by hydrolysis,yield which of the following products?

Similar Questions

The major product obtained in the reaction of bromobenzene with $Mg$ in dry ether followed by the reaction with benzonitrile and hydrolysis is

Which of the following conditions or reaction sequences will $NOT$ give acetophenone as the major product?

The given reaction is: $C_6H_5COCl + H_2 \xrightarrow{Pd/BaSO_4} C_6H_5CHO + HCl$

Identify the final product $A$ in the given reaction sequence.

Give the chemical reactions for the following conversions:
$(1)$ Acetone from propene
$(2)$ Ethanal from $2-$bromobutane

Vedclass Test Series

Exam Paper Generator

Online Exam Module