If the enolate ion combines with the carbonyl | vedclass

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Question

(C) The reaction between an enolate ion and the carbonyl group of an ester is a type of Claisen-like condensation. Step $(i)$: Formation of the enolat

Vedclass · Accepted Answer

$\beta$-keto aldehyde

Vedclass · Answer

(C) The reaction between an enolate ion and the carbonyl group of an ester is a type of Claisen-like condensation. Step $(i)$: Formation of the enolate ion from a ketone (e.g.,acetone) using a base like $CH_3O^-$. Step $(ii)$: The nucleophilic enolate ion attacks the electrophilic carbonyl carbon of the ester. This leads to the formation of a $\beta$-keto compound. In the specific case shown in the mechanism,the product is a $\beta$-keto aldehyde.

Test	Inference
$(a)$ $2, 4-DNP$ test	Coloured precipitate
$(b)$ Iodoform test	Yellow precipitate
$(c)$ Azo-dye test	No dye formation

If the enolate ion combines with the carbonyl group of an ester,we get:

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Test Inference

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