OHC-CH_2-CH_2-CH_2-CH_2-CHO xrightarrow{OH^{- | vedclass

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Question

(B) The reaction is an intramolecular Aldol condensation. Hexanedial $(OHC-(CH_2)_4-CHO)$ contains six carbon atoms. In the presence of a base $(OH^{-

Vedclass · Accepted Answer

cyclopent$-1-$enecarbaldehyde

Vedclass · Answer

(B) The reaction is an intramolecular Aldol condensation. Hexanedial $(OHC-(CH_2)_4-CHO)$ contains six carbon atoms. In the presence of a base $(OH^{-})$ and heat $(\Delta)$,it undergoes cyclization. The $\alpha$-carbon of one aldehyde group attacks the carbonyl carbon of the other aldehyde group to form a stable $5-$membered ring. Subsequent dehydration results in the formation of an $\alpha,\beta$-unsaturated aldehyde,which is cyclopent$-1-$enecarbaldehyde.

$OHC-CH_2-CH_2-CH_2-CH_2-CHO \xrightarrow{OH^{-} / \Delta} \text{Product } (A) \text{ is:}$

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