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Grade 12th passOrganic Chemistry

cyclopentanone from esters of adipic acid by dieckmann reaction.

Profile image of Dulal Pathak
7 Years agoGrade 12th pass
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2 Answers

Profile image of Arun
7 Years ago
Definition of Dieckmann reaction. : a base-catalyzed condensation of an open-chain dicarboxylic ester to form a cyclic keto ester (such as 2-keto-cyclopentane-carboxylic ester)
Profile image of Vikas TU
7 Years ago
Dear student 
The Dieckmann Condensation works well to produce 5- or 6-membered cyclic ß-keto esters, and is usually effected with sodium alkoxide in alcoholic solvent.The yields are good if the product has an enolizable proton; otherwise, the reverse reaction can complete.
C6H10O4 reacts in presence of NaOEt and H3O+ to give cyclopentanone.

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