The reason for the unusual behavior in base-promoted hydrolysis of methyl mesitoate and the experiment with labeled compounds, which confirms the given mode of attack, are to be discussed. Concept introduction: Ester, when reacted with metallic hydroxide, gives alcohol and salts of carboxylic acid called carboxylates. These carboxylate ions are unreactive to nucleophilic substitution because of the presence of a negative charge. This type of reaction is reversible and is also called saponification.

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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 17, Problem 11PP

Interpretation Introduction

Interpretation:

The reason for the unusual behavior in base-promoted hydrolysis of methyl mesitoate and the experiment with labeled compounds, which confirms the given mode of attack, are to be discussed.

Concept introduction:

Ester, when reacted with metallic hydroxide, gives alcohol and salts of carboxylic acid called carboxylates. These carboxylate ions are unreactive to nucleophilic substitution because of the presence of a negative charge. This type of reaction is reversible and is also called saponification.

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(a) Account for the following :(i) Propanal is more reactive than propanone towards nucleophilic reagents.(ii) Electrophilic substitution in benzoic acid takes place at meta position.(iii) Carboxylic acids do not give characteristic reactions of carbonyl group.(b) Give simple chemical test to distinguish between the following pairs of compounds:(i) Acetophenone and benzaldehyde(ii) Benzoic acid and ethylbenzoate.

(a) Explain the mechanism of a nucleophilic attack on the carbonyl group of an aldehyde or a ketone.(b) An organic compound (A) (molecular formula CgH16Q2) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidation of (C) with chromic acid also produced (B). On dehydration (C) gives but-1-ene. Write the equations for the reactions involved.

(a) How will you obtain the following :(i) Benzaldehyde from Phenol (ii) Benzoic acid from Aniline(b) Give reasons :(i) Aldehydes are more reactive than ketones towards nucleophilic reagents.(ii) Electrophilic substitution in benzoic acid takes place at meta position.(iii) Carboxylic acids do not give the characteristic reactions of carbonyl group.

Answer 2

Question

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 17, Problem 11PP

Interpretation Introduction

Interpretation:

The reason for the unusual behavior in base-promoted hydrolysis of methyl mesitoate and the experiment with labeled compounds, which confirms the given mode of attack, are to be discussed.

Concept introduction:

Ester, when reacted with metallic hydroxide, gives alcohol and salts of carboxylic acid called carboxylates. These carboxylate ions are unreactive to nucleophilic substitution because of the presence of a negative charge. This type of reaction is reversible and is also called saponification.

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Answer 3

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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 17, Problem 11PP

Interpretation Introduction

Interpretation:

The reason for the unusual behavior in base-promoted hydrolysis of methyl mesitoate and the experiment with labeled compounds, which confirms the given mode of attack, are to be discussed.

Concept introduction:

Ester, when reacted with metallic hydroxide, gives alcohol and salts of carboxylic acid called carboxylates. These carboxylate ions are unreactive to nucleophilic substitution because of the presence of a negative charge. This type of reaction is reversible and is also called saponification.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

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 17, Problem 11PP

Interpretation Introduction