Advances in Heterocyclic Chemistry Volume 48

Advances in Heterocyclic Chemistry Volume 48
 
Author:
Alan R. Katritzky
Publisher: Academic Press
ISBN No: 0-12-020648-X
Release at: 1990
Pages: 403
Edition:
Volume 48
File Size: 14 MB
File Type: pdf
Language: English



Description of Advances in Heterocyclic Chemistry Volume 48


Advances in Heterocyclic Chemistry Volume 48 of Advances in Heterocyclic Chemistry consists of five chapters that break considerable new ground for the series. One and Furukawa have contributed to what is essentially a double chapter dealing with two important and fast-developing aspects of sulfur heterocyclic chemistry.

The first is ligand coupling and exchange in sulfuranes and the second is ipso-substitution in S-substituted heterocycles. Cirrincione, Almerico, Aiello, and Dattolo cover diazoazoles. This complements a chapter by Tedder that appeared in Volume 1 of the series but which is now very much outdated. The subject has expanded greatly, and the Palermo authors have much fascinating chemistry to recount.

Content of Advances in Heterocyclic Chemistry Volume 48



Heteroaromatic Sulfoxides and Sulfones:
Ligand Exchange and Coupling in Sulfuranes and
Ipso-Substitutions
SHICERU OAE AND NAOMICHI FURUKAWA
I. Introduction .......................................................... I
111. Ipso-Substitution of Azaaromatic Sulfoxides and Sulfones .................. 24
IV. Thione-Thiol Tautomerism and Its Application to Organic Synthesis ........ 43
V. Miscellaneous Reactions ............................................... 51
VI. Conclusion ........................................................... 56
References ........................................................... 56
11. Ligand Coupling and Ligand Exchange in u-Sulfuranes .................... 3

Diazoazoles
GIROLAMO CIRRINCIONE, ANNA MARIA ALMERICO,
ENRICO AIELLO, AND GAETANO DATTOLO
1. Introduction .......................................................... 66
111. Reactivity ............................................................ 85
IV. Synthesis ............................................................. 154
VI. Appendix ............................................................. 166
References ........................................................... 167
11. Structure and Physical Properties ........................................
V. Applications ........................................... ......... 161

Organocobalt-Catalyzed Synthesis of Pyridines
H. B~NNEMANN AND W. BRIJOUX
I. Introduction .......................................................... 177
11. SurveyofCatalysts .................................................... 180
111. Applications of Cobalt-Catalyzed Pyridine Synthesis ....................... 183
IV . Experimental Techniques ............................................... 
V . Mechanistic Aspects ................................................... 
VI . Relations between Catalyst Structure and Effectivity ...................... 
References ...........................................................

Chemistry of Pyrazoles Condensed to Heteroaromatic
Five- and Six-Membered Rings
MOHAMED HILMY ELNAGDI. MOHAMED RIFAAT HAMZA
ELMOGHAYER. AND KAMAL USEF SADEK
I . Introduction .......................................................... 
I1 . Synthesis of Pyrazoloazines ............................................ 
111 . Synthesis of Pyrazoles Condensed to Five-Membered Rings ................ 
IV . Other Pyrazoloazoles .................................................. 
V . Chemical Properties ................................................... 
Vl . Physicochemical Studies ............................................... 
References ...........................................................

Thianthrenes
JOHN A . JOULE
I . Introduction .......................................................... 
I1 . Structure and Physical Properties ........................................ 
Ill . Reactivity ............................................................ 
IV . Synthesis of Thianthrenes .............................................. 
V . Applications .......................................................... 
References ...........................................................

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