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6.7- Dichloro-2- methylquinoxaline 1,4-dioxide

Dichloro-2-methyl-3-phenylsulfonylquinoxaline 1,4-dioxide (55, R = S02Ph) gave 2-bromo-6,7-dichloro-3-methylquinoxaline 1,4-dioxide (55, R = Br) (48% HBr, 80°C, 30 min then 20°C, 12 h 31%) 2-methyl-3-phenylsulfonylquinoxaline 1,4-dioxide gave 2-chloro-3-methylquinoxaline 1,4-dioxide (35% HCl, 70°C, 15 min 87% several analogs likewise). ... [Pg.144]

Bromomethyl-6,7-dichloro-3-phenylthioquinoxaline 1,4-dioxide (245, Q = SPh, R = Br) gave 6,7-dichloro-2-(2-hydroxyethylamino)-3-(2-hydroxyethy-lamino)methylquinoxaline 1,4-dioxide (245, Q = R = NHCH2CH2OH) (H2NCH2CH2OH, CHCI3, 20°C, 4 days 62% note concomitant aminolysis... [Pg.177]

Dichloro-2-methyl-3-methylsulfonylquinoxaline 1,4-dioxide (63) gave 6,7-dichloro-2-(3-dimethylaminopropylamino)-3-methylquinoxaline 1,4-dioxide (64) (H2NCH2CH2CH2NMe2, CHC13, dioxane, 20°C > 80°C, 10 h 47%) or N, /V -bis(6,7-dichloro-3-methyl-1,4-dioxidoquinoxaline-2-yl)hydrazine (65) (H2NNH2, EtOH, 20°C, 10 h 66%).483... [Pg.251]

See other pages where 6.7- Dichloro-2- methylquinoxaline 1,4-dioxide is mentioned: [Pg.391]    [Pg.391]    [Pg.390]    [Pg.391]    [Pg.391]   
See also in sourсe #XX -- [ Pg.177 ]



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2- -3-methylquinoxaline 1,4-dioxide

2- Methylquinoxalines

2-Bromo-6,7-dichloro-3-methylquinoxaline 1,4-dioxide

6.7- Dichloro-2- methylquinoxaline

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