Ester given nucleophilic additionreactionfollowed by eliminationreaction withcarbon nucleophile . Whencarbon nucleophileis of anesterthenthe reactionis knowas Claisencondensationreaction. This reactions is alsocarrieout betweenester and aketone. Asuccessful Claisencondensationrequires an ester withtwo alpha- hydrogensand aan equivalentamountof base ratherthan acatayticamount of base . In the givereaction. C_(2)H_(5)O - overset(O)overset(||)(C) - (CH_(2))_(5) - CH_(2) - COOC_(2)H_(5) underset((ii) H_(2)O //HCl) overset((i) C_(2)H_(3)ONa//C_(2)H_(5)OH)to [X] [X] is .

Ester given nucleophilic additionreactionfollowed by eliminationreacti

1.	Ester given nucleophilic additionreactionfollowed by eliminationreaction withcarbon nucleophile . Whencarbon nucleophileis of anesterthenthe reactionis knowas Claisencondensationreaction. This reactions is alsocarrieout betweenester and aketone. Asuccessful Claisencondensationrequires an ester withtwo alpha- hydrogensand aan equivalentamountof base ratherthan acatayticamount of base . In the givereaction. C_(2)H_(5)O - overset(O)overset(\|\|)(C) - (CH_(2))_(5) - CH_(2) - COOC_(2)H_(5) underset((ii) H_(2)O //HCl) overset((i) C_(2)H_(3)ONa//C_(2)H_(5)OH)to [X] [X] is .
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