In the following reactions,products A and B a | vedclass

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(B) The given reaction is an intramolecular Aldol condensation followed by dehydration.$1$. The starting material is $6,6-	ext{dimethylheptan-2-one}$

Vedclass · Accepted Answer

$A = 	ext{3-hydroxy-2,2-dimethylcyclohexanone}; B = 	ext{6,6-dimethylcyclohex-2-enone}$

Vedclass · Answer

(B) The given reaction is an intramolecular Aldol condensation followed by dehydration.$1$. The starting material is $6,6-	ext{dimethylheptan-2-one}$ (or a similar keto-aldehyde structure). The base $(OH^-)$ abstracts an $\alpha$-hydrogen from the ketone group to form an enolate.$2$. This enolate attacks the carbonyl carbon of the aldehyde group,leading to the formation of a cyclic $\beta$-hydroxy ketone,which is product $A$.$3$. Upon heating with acid $(H_3O^+/\Delta)$,the $\beta$-hydroxy ketone undergoes dehydration (elimination of water) to form an $\alpha,\beta$-unsaturated ketone,which is product $B$.$4$. Based on the structure,$A$ is $3-	ext{hydroxy}-2,2-	ext{dimethylcyclohexanone}$ and $B$ is $6,6-	ext{dimethylcyclohex}-2-	ext{enone}$.

In the following reactions,products $A$ and $B$ are

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