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Question

(B) The reaction involves the acid-catalyzed rearrangement of a dienone to a phenol. $1$. Protonation of the carbonyl oxygen occurs to form a resonanc

Vedclass · Accepted Answer

$2,3,5-$trimethylphenol

Vedclass · Answer

(B) The reaction involves the acid-catalyzed rearrangement of a dienone to a phenol. $1$. Protonation of the carbonyl oxygen occurs to form a resonance-stabilized carbocation. $2$. $A$ $1,2$-methyl shift occurs to relieve steric strain and lead to a more stable aromatic system. $3$. The rearrangement leads to the formation of $2,3,5$-trimethylphenol as the major product,as it minimizes steric repulsion between the methyl groups compared to other isomers.

The product $(A)$ is:

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