SEARCH Articles Figures Tables 2.3- Didehydropyrazine, as an intermediate pyrolysis of pyrazine-2,3-dicarboxylic Amidation of pyrazine Amination of pyrazine Amination of pyrazines Basicity of pyrazine Biological activity of pyrazines By Hydrolysis of Other Substituted Pyrazines By Oxidation of Alkyl-, Styryl-, Hydroxyalkyl-, and Fused Pyrazine Systems Dehydrogenation of piperazines to pyrazines Electrochemical reduction of pyrazine Identification of pyrazines Mass, and Other Spectra of Pyrazines Nuclear Magnetic Resonance Spectra of Pyrazines Nucleophilic substitution—continued of pyrazines Occurrence of pyrazines Of pyrazine Of pyrazine Oxidation of Quinoxalines and Other Fused Pyrazines to Pyrazinecarboxylic Acids PRIMARY SYNTHESES OF PYRAZINE V-OXIDES Preparation of Pyrazine Preparation of Pyrazine V-Oxides Properties of Pyrazine Properties of Pyrazine A-Oxides and their C-Alkyl Derivatives Pyrazine nucleophilic substitution of Pyrazine, 2,5-diboradihydrooxidation use of chromyl trichloroacetate Reactions of Pyrazine Reactions of Pyrazine A-Oxides Ring Transformations of Pyridazines and Other Heterocycles to Pyrazines Synthesis of Quinoxalines from Various Fused Nitrogen-Containing Heterocycles Without a Pyrazine Fragment TABLES OF SIMPLE PYRAZINES THE IONIZATION AND SPECTRA OF PYRAZINES Typical Reactivity of the Diazine Pyridazine, Pyrimidine and Pyrazine Typical reactivity of the diazines pyridazine, pyrimidine and pyrazine Ultraviolet Spectra of Pyrazines