Textbook Question
How could you convert N-methylbenzamide to the following compounds?
b. benzoic acid
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Ch. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid Derivatives
Bruice8th EditionOrganic ChemistryISBN: 9780135213711
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Table of contents
- Ch. 1 - Remembering General Chemistry: Electronic Structure and Bonding (Part 1)31
- Ch. 1 - Remembering General Chemistry: Electronic Structure and Bonding (Part 2)65
- Ch. 2 - Acids and Bases: Central to Understanding Organic Chemistry84
- Ch. 3 - An Introduction to Organic Compounds:Nomenclature, Physical Properties, and Structure183
- Ch. 4 - Isomers: The Arrangement of Atoms in Space121
- Ch. 5 - Alkenes: Structure, Nomenclature, and an Introduction to Reactivity • Thermodynamics and Kinetics83
- Ch. 6 - The Reactions of Alkenes • The Stereochemistry of Addition Reactions175
- Ch. 7 - The Reactions of Alkynes • An Introduction to Multistep Synthesis119
- Ch. 8 - Delocalized Electrons: Their Effect on Stability, pKa, and the Products of a Reaction • Aromaticity and Electronic Effects: An Introduction to the Reactions of Benzene148
- Ch. 9 - Substitution and Elimination Reactions of Alkyl Halides212
- Ch. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing Compounds131
- Ch. 11 - Organometallic Compounds60
- Ch. 12 - Radicals90
- Ch. 13 - Mass Spectrometry; Infrared Spectroscopy; UV/Vis Spectroscopy62
- Ch. 14 - NMR Spectroscopy95
- Ch. 15 - Reactions of Carboxylic Acids and Carboxylic Acid Derivatives123
- Ch. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid Derivatives141
- Ch. 17 - Reactions at the Alpha-Carbon101
- Ch. 18 - Reactions of Benzene and Substituted Benzenes144
- Ch. 19 - More About Amines • Reactions of Heterocyclic Compounds49
- Ch. 20 - The Organic Chemistry of Carbohydrates80
- Ch. 21 - Amino Acids, Peptides, and Proteins57
- Ch. 22 - Catalysis in Organic Reactions and in Enzymatic Reactions35
- Ch. 23 - The Organic Chemistry of the Coenzymes—Compounds Derived from Vitamins1
- Ch. 28 - Pericyclic Reactions58
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Bruice 8th EditionCh. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid DerivativesProblem 72c
Bruice 8th EditionCh. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid DerivativesProblem 72cChapter 17, Problem 72c
How could you convert N-methylbenzamide to the following compounds?
c. methyl benzoate
Verified step by step guidance1
Step 1: Recognize that N-methylbenzamide is an amide, and methyl benzoate is an ester. The conversion involves replacing the amide group (-CONHCH3) with an ester group (-COOCH3). This typically requires hydrolysis followed by esterification.
Step 2: Perform acidic or basic hydrolysis of N-methylbenzamide to break the amide bond. This will yield benzoic acid (C6H5COOH) and methylamine (CH3NH2). Use a strong acid like HCl or a strong base like NaOH for this step.
Step 3: Isolate the benzoic acid from the reaction mixture. If basic hydrolysis was used, acidify the solution to precipitate benzoic acid.
Step 4: React the benzoic acid with methanol (CH3OH) in the presence of an acid catalyst, such as sulfuric acid (H2SO4), to perform esterification. This will convert benzoic acid into methyl benzoate.
Step 5: Purify the methyl benzoate product using techniques such as distillation or recrystallization, depending on the reaction conditions and impurities.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Amide Hydrolysis
Amide hydrolysis is a reaction where an amide is converted into a carboxylic acid and an amine or ammonia, typically in the presence of water and an acid or base. This reaction is crucial for understanding how to transform N-methylbenzamide into its corresponding carboxylic acid, which can then be further converted into methyl benzoate.
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Amide Nomenclature
Esterification
Esterification is the process of forming an ester from a carboxylic acid and an alcohol, usually in the presence of an acid catalyst. In this case, the carboxylic acid derived from the hydrolysis of N-methylbenzamide can react with methanol to produce methyl benzoate, illustrating the importance of this reaction in organic synthesis.
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Nucleophilic Acyl Substitution
Nucleophilic acyl substitution is a fundamental reaction mechanism in organic chemistry where a nucleophile attacks the carbonyl carbon of an acyl compound, leading to the substitution of a leaving group. This mechanism is key in the conversion of the carboxylic acid formed from N-methylbenzamide into the ester methyl benzoate, as the alcohol acts as the nucleophile.
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Related Practice
Textbook Question
What are the products of the following reactions? Show all stereoisomers that are formed.
c.
d.
Textbook Question
How could you convert N-methylbenzamide to the following compounds?
a. N-methylbenzylamine
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Textbook Question
How could you convert N-methylbenzamide to the following compounds?
d. benzyl alcohol
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Textbook Question
List three different sets of reagents (each set consisting of a carbonyl compound and a Grignard reagent) that could be used to prepare each of the following tertiary alcohols:
a.
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Textbook Question
Rank the following compounds from most reactive to least reactive toward nucleophilic addition: