Which one of the following will most readily | vedclass

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Question

(A) Aldols ($\beta$-hydroxy aldehydes or $\beta$-hydroxy ketones) readily undergo dehydration in acidic or basic conditions to form $\alpha,\beta$-uns

Vedclass · Accepted Answer

$4-$hydroxy$-2-$pentanone

Vedclass · Answer

(A) Aldols ($\beta$-hydroxy aldehydes or $\beta$-hydroxy ketones) readily undergo dehydration in acidic or basic conditions to form $\alpha,\beta$-unsaturated carbonyl compounds. This is because the resulting double bond is conjugated with the carbonyl group,which provides significant stability to the product. Among the given options,$4$-hydroxy-$2$-pentanone is a $\beta$-hydroxy ketone. Upon protonation of the hydroxyl group followed by the loss of water,it forms a stable conjugated system. Other options are either simple alcohols or $\gamma$-hydroxy ketones,which do not form conjugated systems as readily as $\beta$-hydroxy carbonyl compounds.

Which one of the following will most readily be dehydrated in acidic condition?

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