title: [Pyrazine-2-carboxylic acid N-oxides. IV. Reaction of pyrazine-2-carboxamide 4-N-oxide with phosphorus oxycholoride].
mesh_terms: D000577:Amides; D002264:Carboxylic Acids; D055598:Chemical Phenomena; D002621:Chemistry; D002712:Chlorides; D003497:Cyclic N-Oxides / Q000138:chemical synthesis; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D017976:Phosphorus Acids; D011719:Pyrazines / Q000138:chemical synthesis; D013055:Spectrophotometry, Infrared
chemical_list: D000577:Amides; D002264:Carboxylic Acids; D002712:Chlorides; D003497:Cyclic N-Oxides; D007202:Indicators and Reagents; D017976:Phosphorus Acids; D011719:Pyrazines
vernacular_title: N-tlenki kwasu pirazyno¿karboksylowego. IV. Reakcja 4-N-tlenku pirazyno-2-karbonamidu z tlenochlorkiem fosforu