Ester gives nucleophilic addition reaction followed by elimination reaction with carbon nucleopile. When carbon nucleophile is of an ester then the reaction is known as Claisen condensation reaction. This reaction is also carried out between ester and a ketone. A suC Cessful Claisen condensation requires an ester with two alpha- hydrogens and anequivalent amount of base rather than a catalytic amount of base. In the given reaction : C_(2)H_(5)O-overset(O)overset(||)C-(CH_(2))_(3)-CH_(2)-COOC_(2)H_(5)underset((ii)H_(2)O //HCl)overset((i)C_(2)H_(5)ONa//C_(2)H_(5)OH)rarr[X] [X] is :

Ester gives nucleophilic addition reaction followed by elimination rea

1.	Ester gives nucleophilic addition reaction followed by elimination reaction with carbon nucleopile. When carbon nucleophile is of an ester then the reaction is known as Claisen condensation reaction. This reaction is also carried out between ester and a ketone. A suC Cessful Claisen condensation requires an ester with two alpha- hydrogens and anequivalent amount of base rather than a catalytic amount of base. In the given reaction : C_(2)H_(5)O-overset(O)overset(\|\|)C-(CH_(2))_(3)-CH_(2)-COOC_(2)H_(5)underset((ii)H_(2)O //HCl)overset((i)C_(2)H_(5)ONa//C_(2)H_(5)OH)rarr[X] [X] is :
Answer» ANSWER :A