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2.3- Dimethyl-6-nitro-5-quinoxalinamine

Nitroquinoxaline (71, Q = R = H) gave a separable mixture of 6-nitro-2-quinoxalinamine (71, Q = NH2, R = H) and 6-nitro-5-quinoxalinamine (71, Q = H, R = NH2) (liquid NH3, KMnOa, 5 h 51% and 32%, respectively) similar treatment of 2,3-dimethyl-6-nitroquinoxaline gave only 2,3-dimethyl-6-nitro-5-quinoxalinamine (18%) and unchanged substrate (55%) and other such aminations are also reported. ... [Pg.270]

Dimethyl-6-methylamino-5-quinoxalinamine (175) (prepared freshly as an ethanolic solution by catalytic hydrogenation of the corresponding nitro compound) and cyanogen bromide gave 3,4,8-trimethyl-3//-imidazo-[4,5-/]quinoxalin-2-amine (176) (20°C, 3.5 h 75%) the analogous... [Pg.292]

See other pages where 2.3- Dimethyl-6-nitro-5-quinoxalinamine is mentioned: [Pg.398]    [Pg.398]    [Pg.398]    [Pg.398]   
See also in sourсe #XX -- [ Pg.270 ]

See also in sourсe #XX -- [ Pg.270 ]



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1.4- Dimethyl-2- -5-nitro

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