Cross conjugation : modern dendralene, radialene and fulvene chemistry

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Cross conjugation : modern dendralene, radialene and fulvene chemistry

edited by Henning Hopf, Michael S. Sherburn

Wiley-VCH, c2016

  • : hbk.

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内容説明

Filling a gap in the chemical literature, this monograph provides a comprehensive overview of the fascinating and expanding field of cross-conjugated molecules, their chemistry, synthesis and properties. The editors are world leading scientists in the field, and have assembled a team of experts to discuss different classes of cross-conjuagted molecules, as well as the use of cross-conjugation for organic synthesis and applications in electronic systems and material science.

目次

List of Contributors XI Preface XV 1 Synthesis of Dendralenes 1 Nicholas J. Green,Mehmet F. Saglam, andMichael S. Sherburn 1.1 Introduction 1 1.2 Multibond Forming Processes 2 1.2.1 Double Alkenylation Reactions 2 1.2.2 Double Alkenation Reactions 4 1.2.3 Other Multibond Forming Processes 10 1.3 Solo-Bond-Forming Reactions 15 1.3.1 C1-C2 Alkenation Reactions 15 1.3.2 C2-C3 Alkenylation Reactions 17 1.3.3 C3-C3' Alkenation Reactions 25 1.4 Dendralenes from Dendralenes 28 1.5 Functional Group Interconversion Reactions 31 1.6 Concluding Remarks 32 References 32 2 The Diene-Transmissive Hetero-Diels-Alder Reaction 39 Takao Saito and Noriki Kutsumura 2.1 Introduction 39 2.2 DTHDA Reaction of Heterotrienes 41 2.2.1 DTHDA Reaction of Thiatrienes 41 2.2.2 DTHDA Reaction of Oxatrienes 42 2.2.3 DTHDA Reaction of Azatrienes 46 2.2.4 DTHDA Reaction of Dioxatrienes as Masked Oxathiatrienes and Oxazatrienes 51 2.3 DTHDA Reaction with Heterodienophiles 52 References 56 3 The Nazarov Cyclization of Cross-Conjugated Ketones 59 Louis Barriault and Mathieu Morin 3.1 Introduction 59 3.2 Mechanism 59 3.3 Substituent Effects 60 3.3.1 -Substituents 60 3.3.1.1 Steric Hindrance 60 3.3.1.2 Electron-Donating Substituents 61 3.3.1.3 Electron-Withdrawing Substituents 62 3.3.2 -Substituents 63 3.3.2.1 Steric Hindrance 63 3.3.2.2 Electron-Donating Substituents 65 3.3.3 Torquoselectivity 65 3.3.3.1 Silyl Groups as Traceless Substituents 66 3.3.3.2 Allenyl Alkenyl Ketones 67 3.3.3.3 Chirality Transfer 68 3.3.3.4 Catalysis of the Nazarov Reaction 69 3.4 Interrupted Nazarov Reactions 73 3.4.1 Cascade Cyclizations 73 3.4.2 [3+2]- and [4+3]Cycloadditions of the Oxyallyl Cation 74 3.4.3 Intermolecular Trapping of the Nazarov Intermediate 75 References 78 4 [n]Radialenes 79 Gerhard Maas 4.1 Introduction 79 4.2 Syntheses and Reactivity 80 4.2.1 [3]Radialenes 81 4.2.2 [4]Radialenes 89 4.2.3 [5]Radialenes 97 4.2.4 [6]Radialenes 98 4.2.5 Higher [n]Radialenes and Radialene Substructures in Polycyclic Conjugated -Systems 105 4.3 Structural and Bonding Properties 107 References 111 5 Oxocarbons, Pseudo-oxocarbons, and Squaraines 117 Vanessa E. de Oliveira, Renata Diniz, Flavia C. Machado, and Luiz Fernando C. de Oliveira 5.1 Introduction 117 5.2 Oxocarbons and Coordination Chemistry 121 5.3 Pseudo-oxocarbons 128 5.3.1 Squaraines 132 5.4 Conclusion and Outlook 139 References 139 6 Recent Developments in Fulvene and Heterofulvene Chemistry 145 Takeshi Kawase and Hiroyuki Kurata 6.1 Introduction 145 6.2 Triafulvenes 148 6.2.1 Benzotriafulvene and Related Compounds 149 6.2.1.1 Synthesis 149 6.2.1.2 Reactions of Benzotriafulvenes 149 6.2.2 Triafulvalene and Related Compounds 150 6.2.2.1 Synthesis of Benzotriafulvalenes 150 6.2.2.2 Triafulvalenes 151 6.2.2.3 Cyclic Bicalicenes 151 6.2.3 Heterotriafulvenes 152 6.2.3.1 Cyclopropenones (CPNs) 152 6.2.3.2 Reaction of CPNs and Related Compounds 154 6.2.3.3 Cyclopropenone Imides (Azatriafulvenes) 159 6.2.3.4 The Other Heterotriafulvenes 159 6.3 Pentafulvenes and Related Compounds 162 6.3.1 Pentafulvenes 162 6.3.1.1 Synthesis of Pentafulvenes 162 6.3.1.2 Reactions of Pentafulvenes 175 6.3.2 Pentafulvalenes 179 6.3.2.1 Synthesis of Symmetric Benzofulvalenes 179 6.3.2.2 Synthesis of Asymmetric Benzofulvalenes 182 6.3.3 Synthesis of Pentafulvenes as Functional Dyes 183 6.3.3.1 6,6-Dicyanofulvenes 183 6.3.3.2 1,3-Dithiafulvalenes 186 6.3.4 Fused Ring Systems Involving Pentafulvene Moieties 187 6.3.4.1 Dibenzopentalenes 191 6.3.4.2 Indacenes 196 6.3.4.3 Heterocyclic Systems 198 6.3.4.4 Carbaporphyrinoids 201 6.3.4.5 Reactions of Fulvalenes for the Construction of Fullerene Fragments 202 6.3.5 Cyclopentadienones (Oxapentafulvene) 205 6.3.5.1 Synthesis of CPDN 207 6.3.5.2 Reaction of CPDNs 219 6.3.6 Heterofulvenes 222 6.3.6.1 Azafulvenes 222 6.3.6.2 Silafulvene 223 6.3.6.3 Phosphafulvene 224 6.4 Heptafulvenes 225 6.4.1 Synthesis of Heptafulvenes 226 6.4.1.1 Synthesis of Dihydroazulene/Vinylheptafulvene (DHA/VHF) Systems 226 6.4.1.2 Reaction of 2H-Cyclohepta[b]furan-2-one Derivatives 228 6.4.2 Heteroheptafulvenes 233 6.4.2.1 Thiatropone (Tropothione) 233 6.4.2.2 Azaheptafulvenes 234 6.5 Other Fulvenes 235 References 236 7 ConstructingMolecular Complexity and Diversity by Cycloaddition Reactions of Fulvenes 249 Bor-Cherng Hong 7.1 Introduction 249 7.2 Reactions of Pentafulvenes 250 7.2.1 [2+2]Cycloadditions 250 7.2.2 [2+3]Cycloadditions 251 7.2.3 [2+4]Cycloadditions 253 7.2.4 [2+8]Cycloadditions 258 7.2.5 [4+2]Cycloadditions 258 7.2.6 [4+3]Cycloadditions 266 7.2.7 [6+2]Cycloadditions 267 7.2.8 [6+3]Cycloadditions 269 7.2.9 [6+4]Cycloadditions 277 7.2.10 Miscellaneous Reactions 280 7.3 Reactions of Heptafulvenes 280 7.4 Reactions of Triafulvenes 284 7.5 Conclusions 296 Acknowledgments 296 References 296 8 Cross-Conjugation and Electronic Structure in TTF Analogs 301 Masashi Hasegawa and Yohji Misaki 8.1 Introduction 301 8.2 Dendralene-Type TTF Analogs and Related Compounds 302 8.2.1 [n]Dendralenes (n=3,4) with DT Units 302 8.2.2 Analogs of DT [n]Dendralenes 305 8.2.3 Thienylene-Inserted DT[n] Dendralenes and Related Compounds 307 8.2.4 Tris-Fused TTF Analogs Possessing [3]Dendralene Moieties 313 8.3 Radialene-Type TTF Analogs (DT-Substituted Radialenes) 314 8.3.1 [4]- and [6]Radialenes with DT Rings 315 8.3.2 [5]Radialene with DT Rings 317 8.3.3 Extended [5]radialenes 320 8.4 Cross-Conjugated TTFs and Related Compounds Linked by -Systems 323 8.4.1 TTFs in Cross-Conjugated Systems 323 8.4.2 Acetylene-Extended Tetrathiafulvalenes in Cross-Conjugated Systems 326 8.4.3 Acetylene-Extended Radialenes and Dendralenes 328 8.4.4 Cross-Conjugated Systems in Acetylene-Extended Radiaannulene Frameworks 329 References 333 9 Cross-Conjugation in Expanded Systems 337 Christian Richard Parker and Mogens Brondsted Nielsen 9.1 Introduction 337 9.2 Tetrathiafulvalene and Dithiafulvene 338 9.2.1 Oligomers by Dithiafulvene Oxidation 339 9.2.2 Anthraquinone-Extended Tetrathiafulvalenes 339 9.3 Communication between Two Identical Redox Centers 340 9.3.1 Organic Redox Centers 342 9.3.2 Organometallic Redox Centers 344 9.3.3 Expanded Radiaannulenes and Radialenes 346 9.4 Cross-Conjugation and Optical Properties 349 9.4.1 Nitrophenolates 350 9.4.2 Other Donor-Acceptor Systems 351 9.4.3 Extended Tetrathiafulvalenes and Dithiafulvene-Dendralenes 352 9.4.4 Synthesis of Dithiafulvene-Dendralene Oligomers by Cascade Reactions 353 9.4.5 Photoinduced Charge Separation in a Donor-Acceptor System 354 9.5 Conjugation and Molecular Electronics 355 9.5.1 Theoretical Comparison of Conduction Pathways 355 9.5.2 Meta- versus Para-Anchoring 356 9.5.3 The Dithienylethene Photoswitch 357 9.5.4 Hydroquinone-Quinone Redox Switch 357 9.5.5 Oligo(phenyleneethynylene)-Tetrathiafulvalene Cruciform Redox Switch 358 9.6 Conclusions 359 References 361 10 Transition Metal Complexes of Cross-Conjugated 𝛑 Systems 365 Holger Butensch on 10.1 Introduction 365 10.2 Trimethylenemethane Complexes 365 10.3 Fulvene Complexes 372 10.4 Fulvalene Complexes 380 10.5 Azulene Complexes 385 10.6 Pentalene and Acepentalene Complexes 387 10.7 Various Complexes 389 References 391 11 Cross-Conjugation and Quantum Interference 397 Gemma C. Solomon 11.1 Introduction 397 11.2 Molecular Electron Transport 398 11.3 The Transport Properties of Cross-Conjugated Molecules 401 11.4 Understanding and Predicting Interference 405 11.5 More than Topology 409 11.6 Conclusions 410 References 411 12 Cross-Conjugation in Synthesis 413 Christopher G. Newton andMichael S. Sherburn 12.1 The Rapid Generation of Structural Complexity 413 12.2 Diene-Transmissive Diels-Alder Reactions 413 12.3 [3]Dendralenes 416 12.3.1 Classification 416 12.3.2 Acyclic [3]Dendralenes 417 12.3.3 Cyclic [3]Dendralenes 422 12.4 Higher Dendralenes 428 12.5 Applications 433 12.6 The Radialenes 435 12.7 Concluding Remarks 440 References 441 Author Index 445 Subject Index 451

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