Contents at a Glance Introduction... Part 1:Brushing up on Important Organie Chemistry I Concepts. Chapter 1:Organic Chemistry II:Here We Go Again!9 Chapter 2:Remembering How We Do It:Mechanisms. .17 Chapter 3:Alcohols and Ethers:Not Just for Drinking and Sleeping. 31 Chapter 4:Conjugated Unsaturated Systems... .53 Chapter 5:"Seeing"Molecules:Spectroscopy Revisited67 Part 11:Discovering Aromatic (And Not So Aromatic)Compounds..79 Chapter 6:Introducing Aromatics... 81 Chapter 7:Aromatic Substitution Part I:Attack of the Electrophiles... 93 .111 Part I11:Carbonyls:Good Alcohols Gone Bad..........121 Chapter 9:Comprehending Carbonyls.............. .123 Chapter 10:Aldehydes and Ketones .137 Chapter 11:Enols and Enolates... 161 Chapter 12:Carboxylic Acids and Their Derivatives .187 Part IV:Advanced Topics (Every Student's Nightmare)219 Chapter 13:Amines and Friends. 221 Chapter 14:Metals Muscling In:Organometallics... 249 Chapter 15:More Reactions of Carbonyl Compounds.. 261 Chapter 16:Living Large:Biomolecules.. …281
Contents at a Glance Introduction ................................................................ 1 Part I: Brushing Up on Important Organic Chemistry I Concepts ....................................... 7 Chapter 1: Organic Chemistry II: Here We Go Again! ....................................................9 Chapter 2: Remembering How We Do It: Mechanisms ................................................17 Chapter 3: Alcohols and Ethers: Not Just for Drinking and Sleeping ........................31 Chapter 4: Conjugated Unsaturated Systems...............................................................53 Chapter 5: “Seeing” Molecules: Spectroscopy Revisited ............................................67 Part II: Discovering Aromatic (And Not So Aromatic) Compounds ........................................... 79 Chapter 6: Introducing Aromatics .................................................................................81 Chapter 7: Aromatic Substitution Part I: Attack of the Electrophiles .......................93 Chapter 8: Aromatic Substitution Part II: Attack of the Nucleophiles and Other Reactions ...........................................................................111 Part III: Carbonyls: Good Alcohols Gone Bad ............. 121 Chapter 9: Comprehending Carbonyls ........................................................................123 Chapter 10: Aldehydes and Ketones ...........................................................................137 Chapter 11: Enols and Enolates ...................................................................................161 Chapter 12: Carboxylic Acids and Their Derivatives ................................................187 Part IV: Advanced Topics (Every Student’s Nightmare) .............................................. 219 Chapter 13: Amines and Friends ..................................................................................221 Chapter 14: Metals Muscling In: Organometallics .....................................................249 Chapter 15: More Reactions of Carbonyl Compounds ..............................................261 Chapter 16: Living Large: Biomolecules ......................................................................281 02_178157-ftoc.indd ix 5/28/10 9:44 AM
Part U:Pulling It All Together30g Chapter 17:Overview of Synthesis Strategies.... 31 Chapter 18:Roadmaps and Predicting Products.................. 327 Part VI:The part of Tens337 Chapter 19:Ten Surefire Ways to Fail Organic Chemistry ll. 339 Chapter 20:More than Ten Ways to Increase Your Score on an Organic Chemistry Exam.. .343 Appendix:Named Reactions37 Index.... ,349
Part V: Pulling It All Together .................................. 309 Chapter 17: Overview of Synthesis Strategies ...........................................................311 Chapter 18: Roadmaps and Predicting Products .......................................................327 Part VI: The Part of Tens .......................................... 337 Chapter 19: Ten Surefi re Ways to Fail Organic Chemistry II ....................................339 Chapter 20: More than Ten Ways to Increase Your Score on an Organic Chemistry Exam ......................................................................343 Appendix: Named Reactions ..................................... 347 Index ...................................................................... 349 02_178157-ftoc.indd x 5/28/10 9:44 AM
Table of Contents ●●●●●●●●●●●0●0●●●●●●●●●●●●●●●●●●0●●●●●●●●●●●●0e● About This Book Conventions Used in This Book. What You're Not to Read... 2 Foolish Assumptions.. 2 How This Book Is Organized. 3 Part I:Brushing Up on Important Organic Chemistry I Concepts......3 Part Il:Discovering Aromatic (And Not So Aromatic) Compounds. 3 Part II Carbonyls:Good Alcohols Gone Bad Part IV:Advanced Topics (Every Student's Nightmare) Part Vl Pulling It All Together.… Tens.. ere to Go n here 5 Part 1:Brushing Up on Important Organic Chemistry I Concepts...7 Chapter 1:Organic Chemistry ll:Here We Go Again! 9 Recapping Organic Chemistry I 10 Intermolecular forces. .10 Functional groups. 11 Reactions.. …11 Spectroscopy.. Isomerism and optical activity. Looking Ahead to Organic Chemistry lI .14 Chapter 2:Remembering How We Do It:Mechanisms 17 Duck-Here Come the Arrows. 17 Coming Around to Curved Arrows... .19 Getting Ready for Some Basic Moves .20 Bond lone pair........ 21 Bond->bond.... .2 Lone pair→bond. Combining the Basic Moves. Intermediates eys to st stitution and eli nation mechanisms Revisiting Free-Ra lical Mechanisms
Table of Contents Introduction ................................................................. 1 About This Book ..............................................................................................1 Conventions Used in This Book .....................................................................2 What You’re Not to Read ................................................................................2 Foolish Assumptions .......................................................................................2 How This Book Is Organized ..........................................................................3 Part I: Brushing Up on Important Organic Chemistry I Concepts ...... 3 Part II: Discovering Aromatic (And Not So Aromatic) Compounds .........................................................................................3 Part III: Carbonyls: Good Alcohols Gone Bad .....................................3 Part IV: Advanced Topics (Every Student’s Nightmare)...................4 Part V: Pulling It All Together ...............................................................4 Part VI: The Part of Tens .......................................................................4 Icons Used in This Book .................................................................................4 Where to Go from Here ...................................................................................5 Part I: Brushing Up on Important Organic Chemistry I Concepts ........................................ 7 Chapter 1: Organic Chemistry II: Here We Go Again! . . . . . . . . . . . . . . .9 Recapping Organic Chemistry I ...................................................................10 Intermolecular forces ..........................................................................10 Functional groups ................................................................................11 Reactions ..............................................................................................11 Spectroscopy ........................................................................................11 Isomerism and optical activity ...........................................................12 Looking Ahead to Organic Chemistry II ......................................................14 Chapter 2: Remembering How We Do It: Mechanisms . . . . . . . . . . . . .17 Duck — Here Come the Arrows ...................................................................17 Coming Around to Curved Arrows ..............................................................19 Getting Ready for Some Basic Moves .........................................................20 Bond → lone pair .................................................................................21 Bond → bond ........................................................................................21 Lone pair → bond ................................................................................22 Combining the Basic Moves .........................................................................22 Intermediates .......................................................................................24 Keys to substitution and elimination mechanisms .........................25 Revisiting Free-Radical Mechanisms ...........................................................27 02_178157-ftoc.indd xi 5/28/10 9:44 AM
xii Organic Chemistry ll For Dummies Chapter 3:Alcohols and Ethers:Not Just for Drinking and Sleeping......................................3 Getting Acquainted with Alcohols. 21 Structure and nomenclature of alcohols. Physical properties of alcohols Making moonshine Synthesis of alcohols 34 What will they do besides burn?Reactions of alcohols. 40 Introducing Ether (Not the Ether Bunny).... .46 Structure and nomenclature of ethers...... .......... Sleepy time:Physical properties of ethers.. ..…46 Synthesis of ethers... 4 Reactions of ethers. 49 Summarizing the Spectra of Alcohols and Ethers.. .51 Chapter 4:Conjugated Unsaturated Systems. .53 When You Don't Have Enough:Unsaturated Systems.. 53 Conjugated systems. 53 The allylic radical...... ,54 Butadiene.. ..55 Delocalization and Resonance. Resonance rules. ted systems........ ons oconugated Unsarsustitution reactions React onjugat eisecondt tring: than a tree:Die els-Alder reaction with Diels-Adler Questions 65 ldentifying the reactants.. 66 Chapter 5:"Seeing"Molecules:Spectroscopy Revisited..........67 mical Fingerprints:Infrared Spectroscopy.. co and N-H stretches C-H stretche Suntans and Beve nd:Ultraviolet and Visible Spectroscopy. 70 Not Weight Watchers,Mass Watchers:Mass Spectroscopy 79 The molecular ion 72 Fragmentation. 73 No Glowing Here:NMR Spectroscopy. 73 Proton.. .74 Carbon-13
xii Organic Chemistry II For Dummies Chapter 3: Alcohols and Ethers: Not Just for Drinking and Sleeping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Getting Acquainted with Alcohols ...............................................................31 Structure and nomenclature of alcohols ..........................................32 Physical properties of alcohols .........................................................33 Making moonshine: Synthesis of alcohols ........................................34 What will they do besides burn? Reactions of alcohols .................40 Introducing Ether (Not the Ether Bunny) ...................................................46 Structure and nomenclature of ethers ..............................................46 Sleepy time: Physical properties of ethers .......................................46 Synthesis of ethers ..............................................................................47 Reactions of ethers ..............................................................................49 Summarizing the Spectra of Alcohols and Ethers .....................................51 Chapter 4: Conjugated Unsaturated Systems . . . . . . . . . . . . . . . . . . . . .53 When You Don’t Have Enough: Unsaturated Systems ..............................53 Conjugated systems ............................................................................53 The allylic radical ................................................................................54 Butadiene ..............................................................................................55 Delocalization and Resonance .....................................................................56 Resonance rules ...................................................................................56 Stability of conjugated unsaturated systems ...................................57 Reactions of Conjugated Unsaturated Systems .........................................57 Put in the second string: Substitution reactions .............................57 Electrophilic addition ..........................................................................59 More than a tree: Diels-Alder reactions ............................................62 Passing an Exam with Diels-Adler Questions .............................................65 Indentifying the product .....................................................................65 Identifying the reactants .....................................................................66 Chapter 5: “Seeing” Molecules: Spectroscopy Revisited . . . . . . . . . .67 Chemical Fingerprints: Infrared Spectroscopy ..........................................68 Double bonds .......................................................................................68 Triple bonds .........................................................................................69 O-H and N-H stretches .........................................................................69 C-H stretches ........................................................................................69 Suntans and Beyond: Ultraviolet and Visible Spectroscopy ....................70 Not Weight Watchers, Mass Watchers: Mass Spectroscopy ...................72 The molecular ion ................................................................................72 Fragmentation ......................................................................................73 No Glowing Here: NMR Spectroscopy .........................................................73 Proton ....................................................................................................74 Carbon-13 ..............................................................................................77 02_178157-ftoc.indd xii 5/28/10 9:44 AM
Table of Contents xiii Part I1:Discovering Aromatic (And Not So Aromatic)Compoundsg Chapter 6:Introducing Aromatics...............................81 Benzene:Where It All Starts.. ..81 Figuring out benzene's structure... 81 Understanding benzene's resonance 83 The stability of benzene.................. 84 Physical properties of benzene. .85 Organic math-Huckel's Rule . .85 8 of the aromatic family.... erivative of be ne. anch oups He vclic Aromatic Compounds "90 Aromatic ox and sulfur pounds. 0 R 91 UV-vis. 91 NMR 91 Mass spec. 92 Chapter 7:Aromatic Substitution Part I Attack of the Electrophiles.....................................93 Basics of Electrophilic Substitution Reactions. Reac on of benzene zene 97 00 Acvlation 100 Why Do an Alkylation?. 101 Changing Things:Modifying the Reactivity of an Aromatic... .101 Lights,camera,action:Directing.. .102 Turning it on,turning it off:Activating and deactivating. .107 Steric hindrance.. ..109 Limitations of Electrophilic Substitution Reactions.... .109
Table of Contents xiii Part II: Discovering Aromatic (And Not So Aromatic) Compounds ............................................ 79 Chapter 6: Introducing Aromatics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81 Benzene: Where It All Starts .........................................................................81 Figuring out benzene’s structure .......................................................81 Understanding benzene’s resonance ................................................83 The stability of benzene ......................................................................84 Physical properties of benzene ..........................................................85 Organic math — Hückel’s Rule ..........................................................85 Other aromatics ...................................................................................87 Smelly Relatives: The Aromatic Family ......................................................87 Nomenclature of the aromatic family................................................87 Derivatives of benzene ........................................................................88 Branches of aromatic groups .............................................................89 Black Sheep of the Family: Heterocyclic Aromatic Compounds .............89 Aromatic nitrogen compounds ..........................................................90 Aromatic oxygen and sulfur compounds ..........................................90 Spectroscopy of Aromatic Compounds ......................................................90 IR ............................................................................................................91 UV-vis.....................................................................................................91 NMR .......................................................................................................91 Mass spec..............................................................................................92 Chapter 7: Aromatic Substitution Part I: Attack of the Electrophiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93 Basics of Electrophilic Substitution Reactions ..........................................94 Reactions of Benzene ....................................................................................95 Halogenation of benzene.....................................................................95 Nitration of benzene ............................................................................96 Sulfonation of benzene ........................................................................97 Friedel-Crafts Reactions ................................................................................99 Alkylation ..............................................................................................99 Acylation .............................................................................................100 Why Do an Alkylation? ................................................................................101 Changing Things: Modifying the Reactivity of an Aromatic ...................101 Lights, camera, action: Directing .....................................................102 Turning it on, turning it off: Activating and deactivating .............107 Steric hindrance .................................................................................109 Limitations of Electrophilic Substitution Reactions ...............................109 02_178157-ftoc.indd xiii 5/28/10 9:44 AM