The major products A and B in the following r | vedclass

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

Question

(A) The reaction involves the formation of a free radical intermediate $[A]$ followed by its addition to an alkene to form product $B$. $1$. In the fi

Vedclass · Accepted Answer

$A$ = $(CH_3)_2CH-\dot{C}(CN)CH_3$ and $B$ = $CH_3CH_2CH_2CH_2-C(CH_3)_2-CN$

Vedclass · Answer

(A) The reaction involves the formation of a free radical intermediate $[A]$ followed by its addition to an alkene to form product $B$. $1$. In the first step,the reaction of $2$-methylbutanenitrile with peroxide and heat leads to the abstraction of the hydrogen atom from the tertiary carbon,resulting in the most stable tertiary free radical: $(CH_3)_2C(\dot{C}HCN)CH_3$ or more simply $(CH_3)_2C(\dot{C}HCN)CH_3$ is not correct,the radical forms at the alpha position to the $CN$ group,which is $(CH_3)_2CH-\dot{C}(CN)CH_3$. $2$. In the second step,the radical $[A]$ adds to the terminal alkene $CH_3CH_2CH_2CH=CH_2$ (pent$-1-$ene). The radical adds to the terminal carbon to form a more stable secondary radical,which then abstracts a hydrogen atom or terminates to form the final product $B$. $3$. The structure of $B$ is $CH_3CH_2CH_2CH_2-C(CH_3)_2-CN$.

List-$I$ (Carbocation)	List-$II$ (Type)
$A$. $CH_3-C^{+}(CH_3)-CH_3$	$I$. Secondary carbocation
$B$. $CH_3-C^{+}H-CH_3$	$II$. Methyl carbocation
$C$. $CH_3-CH_2^+$	$III$. Primary carbocation
$D$. $CH_3^+$	$IV$. Tertiary carbocation

The major products $A$ and $B$ in the following reactions are:

Similar Questions

Which of the following carbocations is most stable?

Which of the following is the least stable carbon free radical?

When do positive and negative charges appear on a carbon atom? Give examples.

Match the following columns and select the correct option.

List-$I$ (Carbocation) List-$II$ (Type)

$A$. $CH_3-C^{+}(CH_3)-CH_3$ $I$. Secondary carbocation

$B$. $CH_3-C^{+}H-CH_3$ $II$. Methyl carbocation

$C$. $CH_3-CH_2^+$ $III$. Primary carbocation

$D$. $CH_3^+$ $IV$. Tertiary carbocation

What are free radicals,carbanions,and carbocations? How are they formed?

Vedclass Test Series

Exam Paper Generator

Online Exam Module