SEARCH Articles Figures Tables 2- pyrazine with benzil 2- pyrazine with nitrous acid 2- pyrazine with thiourea 2- pyrazine, with ethanolic potassium 2- pyrazine, with ethanolic potassium hydroxide 2-Amino-3- pyrazine with guanidine Esters with 2- pyrazine From a Pyrazine Substrate with or without Synthon(s) Porphyrins, reaction with pyrazine Pyrazine 1,4-dioxide with acetic anhydride Pyrazine reaction with dimethyl acetylenedicarboxylate Pyrazine reaction with phosphoryl chloride Pyrazine reactions with radicals Pyrazine with phenyllithium Pyrazines with nucleophiles Reaction with glycine, pyrazines formed