Advances in Heterocyclic Chemistry (eBook)

Cover 1
Advances in Heterocyclic Chemistry 4
Copyright Page 5
Contents 6
Preface 8
Chapter 1. Heteroaromatic Sulfoxides and Sulfones: Ligand Exchange and Coupling in Sulfuranes and Ipso-Substitutions 10
I. Introduction 10
II. Ligand Coupling and Ligand Exchange in s-Sulfuranes 12
III. Ipso-Substitution of Azaaromatic Sulfoxides and Sulfones 33
IV. Thione–Thiol Tautomerism and Its Application to Organic Synthesis 52
V. Miscellaneous Reactions 60
VI. Conclusion 65
References 65
Chapter 2. Diazoazoles 74
I. Introduction 75
II. Structure and Physical Properties 76
III. Reactivity 94
IV. Synthesis 163
V. Applications 170
VI. Appendix 175
References 176
Chapter 3. Organocobalt-Catalyzed Synthesis of Pyridines 186
I. Introduction 186
II. Survey of Catalysts 189
III. Applications of Cobalt-Catalyzed Pyridine Synthesis 192
IV. Experimental Techniques 213
V. Mechanistic Aspects 214
VI. Relations between Catalyst Structure and Effectivity 223
References 227
Chapter 4. Chemistry of Pyrazoles Condensed to Heteroaromatic Five- and Six-Membered Rings 232
I. Introduction 233
II. Synthesis of Pyrazoloazines 233
III. Synthesis of Pyrazoles Condensed to Five-Membered Rings 260
IV. Other Pyrazoloazoles 278
V. Chemical Properties 282
Vl. Physicochemical Studies 292
References 298
Chapter 5. Thianthrenes 310
I. Introduction 311
II. Structure and Physical Properties 312
III. Reactivity 336
IV. Synthesis of Thianthrenes 375
V. Applications 387
References 388