1. Tardigrade
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  4. Which of the following carbocation can not undergo rearrangement?

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Q. Which of the following carbocation can not undergo rearrangement?

NTA AbhyasNTA Abhyas 2020Organic Chemistry – Some Basic Principles and Techniques

Solution:

Here only carbocation given in option C do not undergo rearrangement as it is more stable carbocation. In rest other carbocations rearrangement is possible as follows

$A.$ Solution

$B.$ Solution

$D.$ $C_{6}H_{5}-CH_{2}-\overset{\oplus}{C}H_{2}\overset{1,2 - \overset{\oplus}{H} s h i f t}{ \rightarrow }C_{6}H_{5}-\overset{\oplus}{C}H-CH_{3}$