Textbook Question
Show how m-toluidine can be converted to the following compounds, using any necessary reagents.
(e)
1
views
Ch. 19 - Amines
Wade9th EditionOrganic ChemistryISBN: 9780135213728
Not the one you use?Change textbookSelect a different textbook
Table of contents
- Ch.1 - Structure and Bonding107
- Ch. 2 - Acids and Bases; Functional Groups115
- Ch.3 - Structure and Stereochemistry of Alkanes100
- Ch.4 - The Study of Chemical Reactions99
- Ch.5 - Stereochemistry93
- Ch.6 - Alkyl Halides; Nucleophilic Substitution118
- Ch. 7 - Structure and Synthesis of Alkenes; Elimination158
- Ch.8 - Reactions of Alkenes171
- Ch.9 - Alkynes91
- Ch.10 - Structure and Synthesis of Alcohols143
- Ch.11 - Reactions of Alcohols104
- Ch. 12 - Infrared Spectroscopy and Mass Spectrometry22
- Ch. 13 - Nuclear Magnetic Resonance Spectroscopy45
- Ch. 14 - Ethers, Epoxides, and Thioethers72
- Ch. 15 - Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy89
- Ch. 16 - Aromatic Compounds74
- Ch. 17 - Reactions of Aromatic Compounds126
- Ch. 18 - Ketones and Aldehydes193
- Ch. 19 - Amines129
- Ch. 20 - Carboxylic Acids77
- Ch. 21 - Carboxylic Acid Derivatives141
- Ch. 22 - Condensations and Alpha Substitutions of Carbonyl Compounds175
- Ch. 23 - Carbohydrates and Nucleic Acids93
- Ch. 24 - Amino Acids, Peptides, and Proteins54
Chapter 19, Problem 40b
Show how m-toluidine can be converted to the following compounds, using any necessary reagents.
(b) 
Verified step by step guidance1
Step 1: Begin with m-toluidine (C6H4CH3NH2), which contains an amino group (-NH2) and a methyl group (-CH3) attached to a benzene ring in the meta position. Identify the target compound and determine the functional group transformations required.
Step 2: Protect the amino group (-NH2) to prevent unwanted reactions during subsequent steps. This can be achieved by acetylation using acetic anhydride (CH3CO)2O, forming an acetamide (-NHCOCH3). This step ensures selective reactivity of the methyl group.
Step 3: Oxidize the methyl group (-CH3) to a carboxylic acid (-COOH). This can be done using a strong oxidizing agent such as potassium permanganate (KMnO4) or chromic acid (H2CrO4). The methyl group is converted to a benzoic acid derivative.
Step 4: Remove the protecting group from the amino group (-NHCOCH3) to regenerate the free amino group (-NH2). This can be achieved by hydrolysis using either acidic or basic conditions, such as HCl or NaOH.
Step 5: Verify the structure of the final compound to ensure that the desired functional groups are correctly positioned and the transformations are complete. The final product should have a carboxylic acid (-COOH) and an amino group (-NH2) in the meta positions relative to each other on the benzene ring.
Verified video answer for a similar problem:
This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
6mWas this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Amines and Their Reactivity
Amines are organic compounds derived from ammonia by replacing one or more hydrogen atoms with alkyl or aryl groups. They can act as nucleophiles due to the lone pair of electrons on the nitrogen atom, making them reactive in various organic reactions, including alkylation and acylation. Understanding the reactivity of amines is crucial for predicting the products of reactions involving m-toluidine.
Recommended video:
Guided course
07:12
Reductive Amination
Electrophilic Aromatic Substitution (EAS)
Electrophilic Aromatic Substitution is a fundamental reaction in organic chemistry where an electrophile replaces a hydrogen atom on an aromatic ring. In the case of m-toluidine, the amino group (-NH2) is an activating group that directs electrophiles to the ortho and para positions of the aromatic ring. This concept is essential for understanding how to modify the aromatic structure of m-toluidine to form desired products.
Recommended video:
Guided course
03:07EAS Review
Reduction Reactions
Reduction reactions involve the gain of electrons or the decrease in oxidation state of a molecule. In organic chemistry, this often refers to the conversion of functional groups, such as the reduction of nitro groups to amines or the reduction of carbonyls to alcohols. Knowing the types of reducing agents and their mechanisms is vital for transforming m-toluidine into other compounds, especially when considering the functional groups present in the target products.
Recommended video:
Guided course
07:12Reductive Amination
Related Practice
Textbook Question
Predict the products of the following reactions:
(j)
1
views
Textbook Question
Predict the products of the following reactions:
(i)
1
views
Textbook Question
Show how m-toluidine can be converted to the following compounds, using any necessary reagents.
(a)
Textbook Question
Show how m-toluidine can be converted to the following compounds, using any necessary reagents.
(f)
1
views
Textbook Question
The mass spectrum of tert-butylamine follows shows an intense base peak at m/z 58, and very little else. Use a diagram to show the cleavage that accounts for the base peak. Suggest why no molecular ion is visible in this spectrum.
1
views