Textbook Question
What products are obtained from the reaction of cyclohexene oxide with
b. methylamine?
Ch. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing Compounds
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. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing CompoundsProblem 30a
Bruice 8th EditionCh. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing CompoundsProblem 30aChapter 11, Problem 30a
What products are obtained from the reaction of cyclohexene oxide with
a. methoxide ion?
Verified step by step guidance1
Identify the structure of cyclohexene oxide. Cyclohexene oxide is an epoxide, which is a three-membered cyclic ether containing an oxygen atom. The strained ring makes it highly reactive towards nucleophiles.
Understand the role of the methoxide ion (CH₃O⁻). Methoxide is a strong nucleophile and a strong base. In this reaction, it will act as a nucleophile to open the epoxide ring.
Determine the regioselectivity of the reaction. In the case of an epoxide, the nucleophile attacks the less sterically hindered carbon of the epoxide ring in a basic medium. This is due to the SN2 mechanism, which favors less hindered carbons.
Write the mechanism of the reaction. The methoxide ion attacks the less substituted carbon of the epoxide ring, leading to the opening of the ring. This results in the formation of an alkoxide intermediate.
Protonate the alkoxide intermediate. The alkoxide ion formed in the previous step will be protonated by a proton source (e.g., methanol or water) to yield the final product, which is a 1-methoxy-2-cyclohexanol.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Epoxide Chemistry
Epoxides, or oxiranes, are three-membered cyclic ethers that are highly reactive due to the strain in their ring structure. They can undergo various nucleophilic ring-opening reactions, where a nucleophile attacks the less hindered carbon atom of the epoxide, leading to the formation of diols or other functional groups depending on the nucleophile used.
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General properties of epoxidation.
Nucleophilic Substitution
Nucleophilic substitution is a fundamental reaction mechanism in organic chemistry where a nucleophile replaces a leaving group in a molecule. In the case of cyclohexene oxide reacting with methoxide ion, the methoxide acts as a nucleophile, attacking the epoxide and resulting in the opening of the ring, which leads to the formation of an alcohol.
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Reaction Mechanism
Understanding the reaction mechanism is crucial for predicting the products of a chemical reaction. In this scenario, the mechanism involves the nucleophilic attack of the methoxide ion on the epoxide, followed by the opening of the three-membered ring, which can lead to the formation of a specific alcohol product, depending on the regioselectivity of the attack.
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Related Practice
Textbook Question
What stereoisomers are obtained from the reaction of each of the following alkenes with OsO4 followed by aqueous H2O2?
a. trans-2-butene
b. cis-2-butene
6
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Textbook Question
How can the following compounds be prepared from 3,3-dimethyl-1-butene?
b. 3,3-dimethyl-2-butanol
2
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Textbook Question
What stereoisomers are obtained from the reaction of the alkenes in [PROBLEM 10-32] with a peroxyacid followed by reaction with hydroxide ion?
a. trans-2-butene
b. cis-2-butene
2
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Textbook Question
Would you expect the reactivity of a five-membered ring ether such as tetrahydrofuran (Table 10.2) to be more similar to the reactivity of an epoxide or to the reactivity of a noncyclic ether? Why?
2
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Textbook Question
Explain why HF and HCl cannot be used to cleave ethers in an SN2 reaction.
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