(a) Interpretation: The product formed by the hydrolysis of given lactone or lactam with acid is to be stated. Concept introduction: Lactones are cyclic esters derived from hydroxycarboxylic acids. The synthesis of lactones from hydroxycarboxylic acid is done by intramolecular esterification reaction. However, they can be converted back to hydroxycarboxylic acids by acidic hydrolysis.
(a) Interpretation: The product formed by the hydrolysis of given lactone or lactam with acid is to be stated. Concept introduction: Lactones are cyclic esters derived from hydroxycarboxylic acids. The synthesis of lactones from hydroxycarboxylic acid is done by intramolecular esterification reaction. However, they can be converted back to hydroxycarboxylic acids by acidic hydrolysis.
Solution Summary: The author explains that lactones are cyclic esters derived from hydroxycarboxylic acids.
Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.
Chapter 22, Problem 22.49P
Interpretation Introduction
(a)
Interpretation: The product formed by the hydrolysis of given lactone or lactam with acid is to be stated.
Concept introduction: Lactones are cyclic esters derived from hydroxycarboxylic acids. The synthesis of lactones from hydroxycarboxylic acid is done by intramolecular esterification reaction. However, they can be converted back to hydroxycarboxylic acids by acidic hydrolysis.
Interpretation Introduction
(b)
Interpretation: The product formed by the hydrolysis of given lactone or lactam with acid is to be stated.
Concept introduction: Lactones are cyclic esters derived from hydroxycarboxylic acids. The synthesis of lactones from hydroxycarboxylic acid is done by intramolecular esterification reaction. However, they can be converted back to hydroxycarboxylic acids by acidic hydrolysis.
Interpretation Introduction
(c)
Interpretation: The product formed by the hydrolysis of given lactone or lactam with acid is to be stated.
Concept introduction: Amides are hydrolyzed either in acidic or basic media to yield carboxylic acids or carboxylate anions. A cyclic amide is termed as lactam. It undergoes ring opening in the presence of acid to yield a compound that contains carboxylic acid and amine groups.
Interpretation Introduction
(d)
Interpretation: The product formed by the hydrolysis of given lactone or lactam with acid is to be stated.
Concept introduction: Amides are hydrolyzed either in acidic or basic media to yield carboxylic acids or carboxylate anions. A cyclic amide is termed as lactam. It undergoes ring opening in the presence of acid to yield a compound that contains carboxylic acid and amine groups.