Which halogen atom/group is present in the final major product of the following reaction?

Question

Which halogen atom/group is present in the final major product of the following reaction? (A) F (B) Cl (C) Br (D) CN

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/19183321fb8728ccdb5c57df5f276155-.png" /> The leaving group order is: F > Cl > Br > I. The ' F ' atom is p-position w.r.t. EWG (-CN) whereas the 'Cl' atom is at m-position w.r.t. (-CN) group. The second equivalent of NaOH further reacts with Br.

Q. Which halogen atom/group is present in the final major product of the following reaction?

$F$

$Cl$

$B r$

$CN$

The leaving group order is: $F > Cl > B r > I$ .
The ' $F$ ' atom is $p$ -position w.r.t. $E W G (- CN)$ whereas the ' $Cl$ ' atom is at $m$ -position w.r.t. $(- CN)$ group. The second equivalent of $N a O H$ further reacts with $B r$ .

Q. Which halogen atom/group is present in the final major product of the following reaction?

F

Cl

Br

CN

The leaving group order is: F>Cl>Br>I. The ' F ' atom is p-position w.r.t. EWG(−CN) whereas the 'Cl' atom is at m-position w.r.t. (−CN) group. The second equivalent of NaOH further reacts with Br.

$F$

$Cl$

$B r$

$CN$

The leaving group order is: $F > Cl > B r > I$ .
The ' $F$ ' atom is $p$ -position w.r.t. $E W G (- CN)$ whereas the ' $Cl$ ' atom is at $m$ -position w.r.t. $(- CN)$ group. The second equivalent of $N a O H$ further reacts with $B r$ .