1.

This reaction takes place between two molecules of esters (same or different). One ester should have atleast one alpha-hydrogen atom which behaves as a reagent. The reaction is catalyzed by strong bas elike C_(2)H_(5)barONa^(+) in presence of C_(2)H_(5)OH. The product of this reaction is beta-ketoster: Which of the following esters will not undergo classin condensation?

Answer»

`CH_(3)-overset(O)overset(||)C-OC_(2)H_(5)`
`CH_(3)CH_(2)-overset(O)overset(||)C-OCH_(3)`
`C_(2)H_(5)-overset(O)overset(||)C-OC_(2)H_(5)`
`C_(6)H_(5)-COOC_(2)H_(5)`

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