In the following carbocation, H / CH_3 that is most likely to...

In the following carbocation,

\mathrm{H} / \mathrm{CH}_3

that is most likely to migrate to the positively charged carbon is In the following carbocation, H / CH_3 that is most likely to migrate to the positively charged carbon is

In the following carbocation, H / CH_3 that is most likely to migrate to the positively charged carbon is

Options

A $\mathrm{CH}_3$ at $\mathrm{C}-4$
B $\mathrm{H}$ at $\mathrm{C}-4$
C $\mathrm{CH}_3$ at $\mathrm{C}-2$
D $\mathrm{H}$ at $\mathrm{C}-2$

Correct answer

D. $\mathrm{H}$ at $\mathrm{C}-2$

Step-by-step solution

Hydride shift from

\mathrm{C}-2

will give most stable resonance stabilised carbocation as Fig.

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