Textbook Question
What products are obtained from the reaction of cyclohexene oxide with
a. methoxide ion?
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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 33a,b
Bruice 8th EditionCh. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing CompoundsProblem 33a,bChapter 11, Problem 33a,b
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
Verified step by step guidance1
Identify the reaction type: The reaction involves the conversion of an alkene into an epoxide using a peroxyacid (e.g., mCPBA) followed by a ring-opening reaction with hydroxide ion. This is a two-step reaction mechanism.
Step 1: Epoxidation of the alkene. The peroxyacid reacts with the alkene to form an epoxide. The stereochemistry of the epoxide depends on the stereochemistry of the starting alkene. If the alkene is cis, the epoxide will also be cis (retention of stereochemistry). If the alkene is trans, the epoxide will be trans.
Step 2: Ring-opening of the epoxide. The hydroxide ion attacks the less sterically hindered carbon of the epoxide in an SN2 mechanism. This results in inversion of configuration at the carbon being attacked, leading to the formation of a diol.
Analyze the stereochemistry of the products: Depending on the stereochemistry of the starting alkene (cis or trans), the diol products will have different stereochemical relationships (e.g., enantiomers or diastereomers). For example, a cis-alkene will yield a meso diol, while a trans-alkene will yield a pair of enantiomers.
Summarize the stereoisomers: Based on the stereochemistry of the starting alkene, determine whether the products are enantiomers, diastereomers, or a meso compound. Ensure to consider all possible stereoisomers formed during the reaction.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Stereoisomerism
Stereoisomerism refers to the phenomenon where compounds have the same molecular formula and connectivity of atoms but differ in the spatial arrangement of those atoms. This can lead to different physical and chemical properties. In organic chemistry, stereoisomers include enantiomers and diastereomers, which are crucial for understanding the outcomes of reactions involving chiral centers.
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Determining when molecules are stereoisomers.
Epoxidation
Epoxidation is a chemical reaction that converts alkenes into epoxides, which are three-membered cyclic ethers. This reaction is typically facilitated by peroxyacids, such as m-chloroperbenzoic acid (MCPBA). The formation of epoxides introduces a reactive functional group that can undergo further reactions, influencing the stereochemistry of the resulting products.
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02:19General properties of epoxidation.
Nucleophilic Ring Opening
Nucleophilic ring opening is a reaction where a nucleophile attacks an electrophilic carbon in a strained cyclic compound, such as an epoxide. This process often leads to the formation of diols and can result in the generation of stereoisomers depending on the stereochemistry of the starting material and the conditions of the reaction. The presence of hydroxide ion as a nucleophile is common in this context.
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Related Practice
Textbook Question
What products are obtained from the reaction of cyclohexene oxide with
b. methylamine?
Textbook Question
Draw the mechanism for formation of the two addition products.
2
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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
Draw all possible resonance contributors for the two carbocations in the preceding reaction. Use the resonance contributors to explain why 1-naphthol is the major product of the reaction.
6
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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?
c. cis-2-pentene
d. trans-2-pentene
5
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