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Chapter 21: Q.33P (page 1123)

Propose a mechanism for the formation of 9-hydroxynonanoic acid lactone, as show in the preceding figure.

Short Answer

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Answer

A mechanism for the formation of 9-hydroxynonanoic acid lactone is shown below.

Step by step solution

01

Concept introduction of Lactones

Lactones are the cyclic esters of hydroxycarboxylic acids. Simple lactones that contains five and six-membered rings are more stable than the open-chain hydroxyl acids. Lactones are formed spontaneously under acidic conditions.

02

Formation of 9-hydroxynonanoic acid lactone

Lactone is formed by the intermolecular esterification of hydroxycarboxylic acids that take place simultaneously and result in the formation of 9-hydroxynonanoic acid lactone.

Mechanism

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