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Title proper from title frame.;Mode of access: World Wide Web.;THE PYRAZINES; Contents; I. INTRODUCTION TO PYRAZINES; II. PRIMARY SYNTHESES OF PYRAZINES; III. PRJMARY SYNTHESES OF PYRAZINE N-OXIDES; IV. PYRAZINE, ITS C-ALKYL, C-ARYL, AND N-OXIDE DERIVATIVES; V. HALOGENOPYRAZINES AND N-OXIDE DERIVATIVES; VI. HYDROXYPYRAZINES AND THEIR DERIVATIVES; Vll. MERCAPTOPYRAZINES AND THEIR DERIVATIVES; VIII. AMINOPYRAZINES, THEIR N-OXIDES, AND RELATED NITROGENOUS DERIVATIVES; IX. THE PYRAZINECARBOXYLIC ACIDS AND RELATED DERIVATIVES; X. THE IONIZATION AND SPECTRA OF PY RAZINES; XI. THE REDUCED PYRAZINES; APPENDIX: SYSTEMATIC TABLES OF SIMPLE PYRAZINES; REFERENCES.;Author indexsubject index.;Print version record.;Description based on print version record. Complete coverage of chemical literature on simple pyrazines recorded in Beilstein to 1929, and Chemical Abstracts through 1978 (volume 89), together with selected references to 1980. Describes their history, occurrence, biological activity and uses, and nomenclature. Classified primary syntheses of pyrazines according to the starting materials employed. Treats primary syntheses of pyrazine N-oxides. Details syntheses, properties and reactions of alkyl, halogeno, hydroxy, mercapto, amino and carboxy pyrazines and their derivative and related compounds. Extensive table lists known simple pyrazi.