Textbook Question
Indicate which alcohol in each pair undergoes an elimination reaction more rapidly when heated with H2SO4.
a.
b.
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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 55c,d
Bruice 8th EditionCh. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing CompoundsProblem 55c,dChapter 11, Problem 55c,d
What is the product of each of the following reactions?
c. 
d. 
Verified step by step guidance1
Step 1: Analyze the first reaction. The alcohol group in the compound reacts with p-toluenesulfonyl chloride in the presence of a base to form a tosylate. This reaction replaces the hydroxyl group (-OH) with a tosyl group (-OTs), making the molecule a better leaving group for subsequent reactions.
Step 2: In the second step of the first reaction, the tosylate undergoes nucleophilic substitution with phenoxide ion (C6H5O−). The phenoxide ion attacks the carbon attached to the tosyl group, displacing the tosyl group and forming an ether bond.
Step 3: Analyze the second reaction. The alcohol group in the compound reacts with concentrated sulfuric acid (H2SO4) under heat. This is an elimination reaction where the hydroxyl group is protonated by H2SO4, forming water as a leaving group.
Step 4: After the hydroxyl group leaves, a carbocation intermediate is formed. The stability of the carbocation determines the major product. In this case, the carbocation undergoes rearrangement if necessary to form the most stable intermediate.
Step 5: The carbocation undergoes elimination of a proton from an adjacent carbon atom, forming a double bond. The major product is an alkene, and the position of the double bond is determined by Zaitsev's rule, favoring the more substituted alkene.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Reaction Mechanisms
Understanding reaction mechanisms is crucial in organic chemistry as they describe the step-by-step process by which reactants transform into products. This includes identifying intermediates, transition states, and the movement of electrons. Familiarity with mechanisms helps predict the outcome of reactions and the stability of products formed.
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Functional Groups
Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. Recognizing functional groups allows chemists to predict reactivity and the types of products that can be formed in a reaction. Common functional groups include alcohols, carboxylic acids, and amines.
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Stereochemistry
Stereochemistry involves the study of the spatial arrangement of atoms in molecules and how this affects their chemical behavior. It is essential for understanding isomerism, where compounds with the same molecular formula can have different structures and properties. Stereochemical considerations can significantly influence the outcome of reactions, especially in chiral environments.
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