Download Organic Chemistry, 2nd Edition PDF

Organic Chemistry
SECOND EDITION
DAVID KLEIN

Organic Chemistry
Second edition
DaviD Klein
Johns Hopkins University
VICE PRESIDENT, PUBLISHER Petra Recter
SPONSORING EDITOR Joan Kalkut
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COVER DESIGN Thomas Nery
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EDITORIAL ASSISTANTS Mallory Fryc, Susan Tsui
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Cover/preface photo credits: flask 1-(yellow and red pill capsule) rya sick/iStockphoto, (tiny pills) coulee/iStock-
photo; flask 2-(syringe) Stockcam/Getty Images, (liquid) mkurthas/iStockphoto; flask 3-(key) Gary S. Chapman/
Photographer’s Choice/Getty Images, (key pile) Olexiy Bayev/Shutterstock; flask 4-(poppy) Margaret Rowe/
Garden Picture Library/Getty Images, (poppies) Kuttelvaserova Stuchelova/ Shutterstock; flask 5-(tomato evolu-
tion)Alena Brozova/Shutterstock, (cherry tomatoes) Natalie Erhova (summerky)/Shutterstock, (cherry tomatoes
pile) © Jessica Peterson/Tetra Images/Corbis; flask 6-(ribbon) macia/Getty Images (ribbon symbol) JamesBrey/
iStockphoto; flask 7-(scoop) Fuse/Getty Images (coffee beans) Vasin Lee/Shutterstock, (espresso) Rob Stark/
Shutterstock; flask 8-(smoke) stavklem/ Shutterstock, (chili peppers) Ursula Alter/Getty Images.
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ISBN
Main edition: 978-1-118-45228-8
Binder version: 978-1-118-45431-2
Printed in the United States of America
10 9 8 7 6 5 4 3 2 1
Dedication
To Larry,
By inspiring me to pursue a career in organic chemistry instruction, you served as the
spark for the creation of this book. You showed me that any subject can be fascinating (even
organic chemistry!) when presented by a masterful teacher. Your mentorship and friendship
have profoundly shaped the course of my life, and I hope that this book will always serve as
a source of pride and as a reminder of the impact you’ve had on your students.
To my wife, Vered,
This book would not have been possible without your partnership. As I worked for years
in my office, you shouldered all of our life responsibilities, including taking care of all of
the needs of our five amazing children. This book is our collective accomplishment and will
forever serve as a testament of your constant support that I have come to depend on for
everything in life. You are my rock, my partner, and my best friend. I love you.
Brief Contents
1
A Review of General Chemistry: Electrons, Bonds, and Molecular Properties 1
2
Molecular Representations 51
3
Acids and Bases 96
4
Alkanes and Cycloalkanes 139
5
Stereoisomerism 192
6
Chemical Reactivity and Mechanisms 236
7
Substitution Reactions 287
8
Alkenes: Structure and Preparation via Elimination Reactions 341
9
Addition Reactions of Alkenes 404
10
Alkynes 464
11
Radical Reactions 500
12
Synthesis 547
13
Alcohols and Phenols 576
14
Ethers and Epoxides; Thiols and Sulfides 633
15
Infrared Spectroscopy and Mass Spectrometry 683
16
Nuclear Magnetic Resonance Spectroscopy 731
17
Conjugated Pi Systems and Pericyclic Reactions 782
18
Aromatic Compounds 832
19
Aromatic Substitution Reactions 874
20
Aldehydes and Ketones 931
21
Carboxylic Acids and Their Derivatives 984
22
Alpha Carbon Chemistry: Enols and Enolates 1044
23
Amines 1102
24
Carbohydrates 1151
25
Amino Acids, Peptides, and Proteins 1193
26
Lipids 1239
27
Synthetic Polymers 1279
Contents
MEDICALLY SPEAKING Identifying the
Pharmacophore 67
2.7 Introduction to Resonance 68
2.8 Curved Arrows 70
2.9 Formal Charges in Resonance Structures 73
1
2.10 Drawing Resonance Structures via Pattern
Recognition 75
2.11 Assessing Relative Importance of Resonance
A Review of General Chemistry:
Structures 81
Electrons, Bonds, and Molecular
2.12 Delocalized and Localized Lone Pairs 85
Properties 1
Review of Concepts & Vocabulary • SkillBuilder Review •
Practice Problems • Integrated Problems • Challenge Problems
1.1 Introduction to Organic Chemistry 2
1.2 The Structural Theory of Matter 3
1.3 Electrons, Bonds, and Lewis Structures 4 3
1.4 Identifying Formal Charges 8
1.5 Induction and Polar Covalent Bonds 9
Acids and Bases 96
PRACTICALLY SPEAKING Electrostatic Potential
Maps 12
3.1 Introduction to Brønsted-Lowry Acids
1.6 Atomic Orbitals 12 and Bases 97
1.7 Valence Bond Theory 16 3.2 Flow of Electron Density: Curved Arrow Notation 97
1.8 Molecular Orbital Theory 17 MEDICALLY SPEAKING Antacids and Heartburn 100
1.9 Hybridized Atomic Orbitals 18 3.3 Brønsted-Lowry Acidity: A Quantitative Perspective 101
1.10 VSEPR Theory: Predicting Geometry 25 MEDICALLY SPEAKING Drug Distribution and pK 108
a
1.11 Dipole Moments and Molecular Polarity 30 3.4 Brønsted-Lowry Acidity: Qualitative Perspective 109
1.12 Intermolecular Forces and Physical Properties 34 3.5 Position of Equilibrium and Choice of Reagents 122
PRACTICALLY SPEAKING Biomimicry and 3.6 Leveling Effect 125
Gecko Feet 36
3.7 Solvating Effects 126
MEDICALLY SPEAKING Drug-Receptor Interactions 40
3.8 Counterions 127
1.13 Solubility 41
PRACTICALLY SPEAKING Baking Soda versus
MEDICALLY SPEAKING Propofol: The Importance of Baking Powder 128
Drug Solubility 42
3.9 Lewis Acids and Bases 129
Review of Concepts & Vocabulary • SkillBuilder Review •
Review of Concepts & Vocabulary • SkillBuilder Review •
Practice Problems • Integrated Problems • Challenge Problems
Practice Problems • Integrated Problems • Challenge Problems
2 4
Molecular Representations 51 Alkanes and Cycloalkanes 139
2.1 Molecular Representations 52 4.1 Introduction to Alkanes 140
2.2 Bond-Line Structures 54 4.2 Nomenclature of Alkanes 140
2.3 Identifying Functional Groups 59 PRACTICALLY SPEAKING Pheromones: Chemical
Messengers 145
MEDICALLY SPEAKING Marine Natural Products 61
MEDICALLY SPEAKING Naming Drugs 153
2.4 Carbon Atoms with Formal Charges 62
4.3 Constitutional Isomers of Alkanes 154
2.5 Identifying Lone Pairs 62
4.4 Relative Stability of Isomeric Alkanes 155
2.6 Three-Dimensional Bond-Line Structures 66
4.5 Sources and Uses of Alkanes 156
v
vi CONTENTS
PRACTICALLY SPEAKING An Introduction 6.3 Gibbs Free Energy 243
to Polymers 158
PRACTICALLY SPEAKING Explosives 244
4.6 Drawing Newman Projections 158
PRACTICALLY SPEAKING Do Living Organisms Violate
4.7 Conformational Analysis of Ethane the Second Law of Thermodynamics? 245
and Propane 160
6.4 Equilibria 246
4.8 Conformational Analysis of Butane 162
6.5 Kinetics 248
MEDICALLY SPEAKING Drugs and Their
MEDICALLY SPEAKING Nitroglycerin: An Explosive
Conformations 166
with Medicinal Properties 251
4.9 Cycloalkanes 167
PRACTICALLY SPEAKING Beer-Making 252
MEDICALLY SPEAKING Cyclopropane as an Inhalation
6.6 Reading Energy Diagrams 253
Anesthetic 168
6.7 Nucleophiles and Electrophiles 256
4.10 Conformations of Cyclohexane 169
6.8 Mechanisms and Arrow Pushing 260
4.11 Drawing Chair Conformations 170
6.9 Combining the Patterns of Arrow Pushing 266
4.12 Monosubstituted Cyclohexane 172
6.10 Drawing Curved Arrows 268
4.13 Disubstituted Cyclohexane 175
6.11 Carbocation Rearrangements 271
4.14 cis-trans Stereoisomerism 180
6.12 Reversible and Irreversible Reaction Arrows 273
4.15 Polycyclic Systems 181
Review of Concepts & Vocabulary • SkillBuilder Review •
Review of Concepts & Vocabulary • SkillBuilder Review •
Practice Problems • Integrated Problems •
Practice Problems • Integrated Problems • Challenge Problems
Challenge Problems
5
7
Stereoisomerism 192
5.1 Overview of Isomerism 193
Substitution Reactions 287
5.2 Introduction to Stereoisomerism 196
PRACTICALLY SPEAKING The Sense of Smell 202 7.1 Introduction to Substitution Reactions 288
5.3 Designating Configuration Using the 7.2 Alkyl Halides 289
Cahn-Ingold-Prelog System 203
7.3 Possible Mechanisms for Substitution
MEDICALLY SPEAKING Chiral Drugs 208 Reactions 292
5.4 Optical Activity 209 7.4 The S 2 Mechanism 296
N
5.5 Stereoisomeric Relationships: Enantiomers PRACTICALLY SPEAKING S 2 Reactions in Biological
N
and Diastereomers 214 Systems—Methylation 302
5.6 Symmetry and Chirality 218 7.5 The S 1 Mechanism 303
N
5.7 Fischer Projections 223 7.6 Drawing the Complete Mechanism
of an S 1 Reaction 309
5.8 Conformationally Mobile Systems 225 N
7.7 Drawing the Complete Mechanism
5.9 Resolution of Enantiomers 226
of an S 2 Reaction 316
N
Review of Concepts & Vocabulary • SkillBuilder Review •
MEDICALLY SPEAKING Radiolabelled Compounds in
Practice Problems • Integrated Problems • Challenge Problems
Diagnostic Medicine 319
7.8 Determining Which Mechanism
Predominates 320
6
7.9 Selecting Reagents to Accomplish Functional Group
Transformation 327
MEDICALLY SPEAKING Pharmacology and Drug
Chemical Reactivity and Mechanisms 236
Design 330
Review of Reactions • Review of Concepts & Vocabulary
6.1 Enthalpy 237
SkillBuilder Review • Practice Problems
6.2 Entropy 240 Integrated Problems • Challenge Problems
CONTENTS vii
8 PRACTICALLY SPEAKING Partially Hydrogenated
Fats and Oils 434
9.8 Halogenation and Halohydrin Formation 435
Alkenes: Structure and Preparation via
9.9 Anti Dihydroxylation 440
Elimination Reactions 341
9.10 Syn Dihydroxylation 443
9.11 Oxidative Cleavage 444
8.1 Introduction to Elimination Reactions 342
9.12 Predicting Products of an Addition Reaction 446
8.2 Alkenes in Nature and in Industry 342
9.13 Synthesis Strategies 448
PRACTICALLY SPEAKING Pheromones to Control
Insect Populations 343 Review of Reactions • Review of Concepts & Vocabulary
• SkillBuilder Review • Practice Problems
8.3 Nomenclature of Alkenes 345
Integrated Problems • Challenge Problems
8.4 Stereoisomerism in Alkenes 348
MEDICALLY SPEAKING Phototherapy Treatment for
Neonatal Jaundice 352 10
8.5 Alkene Stability 353
8.6 Possible Mechanisms for Elimination 356
Alkynes 464
8.7 The E2 Mechanism 358
8.8 Drawing the Products of an E2 Reaction 371 10.1 Introduction to Alkynes 465
8.9 The E1 Mechanism 372 MEDICALLY SPEAKING The Role of Molecular
8.10 Drawing the Complete Mechanism Rigidity 466
of an E1 Process 377 PRACTICALLY SPEAKING Conducting Organic
8.11 Drawing the Complete Mechanism of Polymers 467
an E2 Process 382 10.2 Nomenclature of Alkynes 467
8.12 Substitution vs. Elimination: Identifying 10.3 Acidity of Acetylene and Terminal Alkynes 470
the Reagent 383
10.4 Preparing Alkynes 473
8.13 Substitution vs. Elimination: Identifying
10.5 Reduction of Alkynes 474
the Mechanism(s) 387
10.6 Hydrohalogenation of Alkynes 478
8.14 Substitution vs. Elimination: Predicting
the Products 391 10.7 Hydration of Alkynes 481
Review of Synthetically Useful Elimination Reactions 10.8 Halogenation of Alkynes 487
Review of Concepts & Vocabulary • SkillBuilder Review • 10.9 Ozonolysis of Alkynes 487
Practice Problems • Integrated Problems • Challenge Problems
10.10 Alkylation of Terminal Alkynes 488
10.11 Synthesis Strategies 489
9 Review of Reactions • Review of Concepts & Vocabulary
SkillBuilder Review • Practice Problems
Integrated Problems • Challenge Problems
Addition Reactions of Alkenes 404
9.1 Introduction to Addition Reactions 405
11
9.2 Addition vs. Elimination: A Thermodynamic
Perspective 406
9.3 Hydrohalogenation 407 Radical Reactions 500
PRACTICALLY SPEAKING Cationic Polymerization
and Polystyrene 415 11.1 Radicals 501
9.4 Acid-Catalyzed Hydration 416 11.2 Common Patterns in Radical Mechanisms 506
PRACTICALLY SPEAKING Industrial Production 11.3 Chlorination of Methane 510
of Ethanol 420
11.4 Thermodynamic Considerations for Halogenation
9.5 Oxymercuration-Demercuration 420 Reactions 513
9.6 Hydroboration-Oxidation 422 11.5 Selectivity of Halogenation 516
9.7 Catalytic Hydrogenation 428 11.6 Stereochemistry of Halogenation 519
viii CONTENTS
11.7 Allylic Bromination 522 13.5 Preparation of Diols 595
11.8 Atmospheric Chemistry and the Ozone Layer 524 PRACTICALLY SPEAKING Antifreeze 596
PRACTICALLY SPEAKING Fighting Fires with 13.6 Preparation of Alcohols via Grignard
Chemicals 526 Reagents 596
11.9 Autooxidation and Antioxidants 527 13.7 Protection of Alcohols 600
MEDICALLY SPEAKING Why is an Overdose of 13.8 Preparation of Phenols 602
Acetaminophen Fatal? 530
MEDICALLY SPEAKING Phenols as Antifungal
11.10 Radical Addition of HBr: Anti-Markovnikov Agents 603
Addition 531
13.9 Reactions of Alcohols: Substitution
11.11 Radical Polymerization 535 and Elimination 603
11.12 Radical Processes in the Petrochemical Industry 538 PRACTICALLY SPEAKING Drug Metabolism 607
11.13 Halogenation as a Synthetic Technique 538 13.10 Reactions of Alcohols: Oxidation 609
Review of Synthetically Useful Radical Reactions PRACTICALLY SPEAKING Breath Tests to Measure
Review of Concepts & Vocabulary • SkillBuilder Review • Blood Alcohol Level 610
Practice Problems • Integrated Problems • Challenge Problems
13.11 Biological Redox Reactions 613
PRACTICALLY SPEAKING Biological Oxidation
of Methanol and Ethanol 614
13.12 Oxidation of Phenol 615
12
13.13 Synthesis Strategies 616
Review of Reactions • Review of Concepts & Vocabulary
Synthesis 547
SkillBuilder Review • Practice Problems
Integrated Problems • Challenge Problems
12.1 One-Step Syntheses 548
12.2 Functional Group Transformations 549
12.3 Reactions that Change the Carbon Skeleton 554
14
MEDICALLY SPEAKING Vitamins 556
12.4 How to Approach a Synthesis Problem 557
MEDICALLY SPEAKING The Total Synthesis of Ethers and Epoxides; Thiols and
Vitamin B12 559 Sulfides 633
12.5 Retrosynthetic Analysis 560
PRACTICALLY SPEAKING Retrosynthetic Analysis 568 14.1 Introduction to Ethers 634
12.6 Practical Tips for Increasing Proficiency 568 14.2 Nomenclature of Ethers 634
MEDICALLY SPEAKING Total Synthesis of Taxol 570 14.3 Structure and Properties of Ethers 637
Review of Concepts & Vocabulary • SkillBuilder Review • MEDICALLY SPEAKING Ethers as Inhalation
Practice Problems • Integrated Problems • Challenge Problems Anesthetics 638
14.4 Crown Ethers 639
MEDICALLY SPEAKING Polyether Antibiotics 641
14.5 Preparation of Ethers 641
13
14.6 Reactions of Ethers 644
14.7 Nomenclature of Epoxides 647
Alcohols and Phenols 576
MEDICALLY SPEAKING Epothilones as Novel
Anticancer Agents 648
13.1 Structure and Properties of Alcohols 577
14.8 Preparation of Epoxides 648
MEDICALLY SPEAKING Chain Length as a Factor
MEDICALLY SPEAKING Active Metabolites
in Drug Design 582
and Drug Interactions 651
13.2 Acidity of Alcohols and Phenols 583
14.9 Enantioselective Epoxidation 652
13.3 Preparation of Alcohols via Substitution
14.10 Ring-Opening Reactions of Epoxides 654
or Addition 586
PRACTICALLY SPEAKING Ethylene Oxide as a Sterilizing
13.4 Preparation of Alcohols via Reduction 587
Agent for Sensitive Medical Equipment 657

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