Question

Why ketones not undergo knoevenagel condensation in malonic ester?

Answer 1

A Knoevenagel condensation is a nucleophilic addition of an active hydrogen compound to a carbonyl group followed by a dehydration reaction in which a molecule of water is eliminated (hence condensation). The product is often an α,β-unsaturated ketone (a conjugated enone).

Answer 2

$\huge{\bold{\red{Heya!!!}}}$

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Actually I want to undergo knoevenagel reaction under acidic condition. ... converts an aldehyde or ketone & an activated methylene (e.g. a malonic diester)