HydrocarbonsMedium

Question

The major product of which of the following reaction is not obtained by rearrangement reaction?

Options

A.
B.
C.
D.

Solution

Sol. [Key Concept: Friedel-Crafts alkylation (1) and the alkane isomerisation (3) proceed through hydride/alkyl shifts, whereas acid-catalysed dehydration of the alcohol in option (2) forms its alkene directly from a stable carbocation, so its major product does not involve rearrangement.]

Product obtained without rearrangement.

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