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 33c,d
Bruice 8th EditionCh. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing CompoundsProblem 33c,dChapter 11, Problem 33c,d
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
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 alkene reacts with the peroxyacid to form an epoxide. The stereochemistry of the alkene determines the stereochemistry of the epoxide. If the alkene is cis, the epoxide will be cis; if the alkene is trans, the epoxide will be trans. Represent the epoxide structure using MathML if needed.
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 the formation of a diol. The attack inverts the stereochemistry at the carbon being attacked, leading to anti stereochemistry in the product.
Analyze the stereoisomers: Depending on the stereochemistry of the starting alkene (cis or trans), the reaction will yield different stereoisomers of the diol. For example, a cis-alkene will produce enantiomers of the anti diol, while a trans-alkene will also produce enantiomers of the anti diol but with different stereochemical configurations.
Summarize the stereoisomers: List the possible stereoisomers (e.g., R,R and S,S or R,S and S,R) based on the starting alkene's configuration. Ensure to clearly represent the stereochemistry using wedge-dash notation or MathML for clarity.
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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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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 ring structure, 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 nucleophile's approach. The reaction with hydroxide ion after epoxidation is a common example of this mechanism.
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Related Practice
Textbook Question
Draw the mechanism for formation of the two addition products.
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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?
a. trans-2-butene
b. cis-2-butene
2
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Textbook Question
The existence of the NIH shift was established by determining the major product obtained from rearrangement of the following arene oxide, in which a hydrogen has been replaced by a deuterium.
a. What would be the major product if the NIH shift occurs? (Hint: A C—H bond is easier to break than a C—D bond.)
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