3-Amino-2-quinoxalinecarbonitrile 4-oxide

Amino-2-quinoxalinecarbonitrile 4-oxide (266) selectively from the corresponding 1,4-dioxide (HCl, H2O, EtOH, reflux, 24 h 75% mechanism unclear)." ... [Pg.234]

Amino-2-quinoxalinecarbonitrile 4-oxide 3-Amino-2-quinoxalinecarboxamide 3-Amino-2-quinoxalinecarboxamide 1,4-dioxide 3-Amino-2-quinoxalinecarboxamide oxime 3-Amino-2-quinoxalinecarboxamide oxime... [Pg.367]

Chloro-6-hydroxyiminocyclohexanone (302) (as hydrochloride) and a-amino-malononitrile (303) (as tosylate) gave 3-amino-8-chloro-5,6,7,8-tetrahydro-2-quinoxalinecarbonitrile 4-oxide (304) (Pr OH, 20°C, 18 h 46%). ... [Pg.42]

Benzoxadiazole 1-oxide (497) and malononitrile gave 3-amino-2-quinox-alinecarbonitrile 1,4-dioxide (498) (EtsN, MeaNCHO, 25°, 90 min 75% EtsN, MeaNCHO, 0°C 10°C, 4 h 15% f EtsN, Me2NCHO, 0°C 20°C, 24 h 75%)7 Symmetrically substituted substrates afforded products like 3-amino-6,7-dunethyl-2-quinoxalinecarbonitrile 1,4-dioxide (499), but unsym-metric substrates usually gave two isomeric products, such as 3-amino-6/7-... [Pg.67]

Amino-3-methyl-2(l//)-quinoxalinone 3-Amino-l-methyl-2(l//)-quinoxalinone 4-oxide 3-Amino-7-nitro-2-quinoxalinecarbonitrile... [Pg.367]

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