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2-Aminoquinoxaline 1,4-dioxide

Hydroxyquinoxaline (98) is converted into the 1,4-dioxide (99), and 5-acetamido-7-methylquinoxaline similarly forms the 1,4-dioxide with m-chloroperbenzoic acid in benzene.195a,b 2-Aminoquinoxaline is best oxidized with permaleic acid in ethanol in the presence of sodium bicarbonate. Exclusive 1-oxidation occurs, and the product is conveniently isolated as the carbamic acid ester (100) (85%).115... [Pg.392]

Dehydrogenation of 2-amino-3,4-dihydroquinoxaline to 2-aminoquinoxaline is effected smoothly by reaction with hydrogen peroxide in combination with a trace amount of ferrous chloride, ferric sulfate, or lead dioxide as carrier. Details are... [Pg.970]

Aminoquinoxalin-3-one Pyrid-2-one-3-carboxylic acid Benzo-1,2,4-thiodiazin-3-one-l, 1-dioxide Pyrimido[5,4-dlpyrimidine-2,4,6,8-... [Pg.259]

See other pages where 2-Aminoquinoxaline 1,4-dioxide is mentioned: [Pg.41]    [Pg.182]    [Pg.182]    [Pg.614]    [Pg.182]    [Pg.30]    [Pg.41]    [Pg.130]   
See also in sourсe #XX -- [ Pg.41 ]



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