SEARCH Articles Figures Tables 1 -Benzyl-3 - -pyrazinone 1 -Benzyl-3.5-dichloro-2 -pyrazinone 1 -Benzyl-5-chloro-3-phenyl-2 pyrazinone 1- Benzyl-2 -pyrazinone 4-oxide 1- Benzyloxy-3- -pyrazinone 1- Benzyloxy-5,6-dimethyl-2 pyrazinone 1- Hydroxy-2 -pyrazinone 1.5- Diphenyl-2 -pyrazinone 2 -Pyrazinone 4-oxide 2 -Pyrazinone 4-oxide alkylation 2 -Pyrazinones, formation 2 -pyrazinone halogenation 2 -pyrazinone with thionyl chloride 2-Pyrazinone, 3-phenyl-, nitration 3 - Amino-5 - pyrazinone 3,5-Dichloro-2 -pyrazinones 3- -pyrazinone cyclization 3- Amino-1 -methyl-2 -pyrazinone 3- Amino-5-chloro-2 pyrazinones 3- Methoxy-1 -phenyl-2 -pyrazinone 3- Methyl-2 -pyrazinone 3- Methyl-2 -pyrazinone alkylation 3- Methyl-5-phenyl-2 -pyrazinone 3- Methyl-5-phenyl-2(l//(-pyrazinone 3- isobutyl-6- pyrazinone 3-Amino-5-chloro-1 -methyl-2 pyrazinone 3-Ethyl-1 pyrazinone 3-Isobutyl-2 -pyrazinone 4-oxide 3-Phenyl-2( 17/ (-pyrazinone 4-oxide 3.5 -Dichloro-1 -phenyl-2 -pyrazinone 3.5- Dichloro-1 -methyl-2 pyrazinone 3.5.5- Trimethyl-5,6-dihydro-2 pyrazinone 3.6- Dibenzyl-5-methoxy-2 pyrazinone 3.6- Diethyl-2 -pyrazinone 3.6- Diisopropyl-2 -pyrazinone 3.6- Dimethyl-2 -pyrazinone 5- Chloro-3-phenyl-2 -pyrazinone 5-Benzylthio-2 -pyrazinone 5-Bromo-3,6-diisobutyl-2 pyrazinone 5-Chloro-6- pyrazinone 5-Hydroxy-3.6-dimethyl-2 pyrazinone 5-Hydroxy-3.6-diphenyl-2 pyrazinone 5-Methyl-2 -pyrazinones 6- Phenyl-2( 17/(-pyrazinone 6- „/-Methoxybenzyl-2 pyrazinone 6-Amino-5-benzyl-3-methyl-2 pyrazinone 6-Hydroxy-3,4-dihydro-2 pyrazinone 6-Isopropyl-3.5-dimethyl-2 pyrazinone Acylaminopyrazines from pyrazinones Case study pyrazinone Diels-Alder chemistry Click 2 -pyrazinone Halogenopyrazines from pyrazinones L- -pyrazinone Nuclear Halogenopyrazines from Pyrazinones Preparation of Nontautomeric Pyrazinones Preparation of Tautomeric Pyrazinones Pyrazinone ring Pyrazinone, tautomerism Pyrazinones Pyrazinones Pyrazinones Diels-Alder reactions Pyrazinones acylation Pyrazinones addition reactions Pyrazinones alkanelysis Pyrazinones alkylation Pyrazinones and Quinoxalinones Pyrazinones cyclization Pyrazinones dimerization Pyrazinones endoperoxidation Pyrazinones irradiation products Pyrazinones reduction Pyrazinones scaffold decoration Pyrazinones silylation Pyrazinones tautomerism Pyrazinones thiation Pyrazinones, Diels-Alder Pyrazinones, tetrahydro Reactions of Nontautomeric Pyrazinones Reactions of Tautomeric Pyrazinones Tautomeric Pyrazinones