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2.3- Dimethyl-6-nitroquinoxaline, oxidative

Nitro-6-(prop-2-ynylamino)aniline (19, R = H) gave 2-methyl-7-nitroquinoxa-line (20, R = H)[(MeCN)4CuBF4, PhMe, 85°C, 20 h 75% aerial oxidation ] 2,6-dimethyl-7-nitroquinoxaline (20, R = Me) was made similarly (78%). " °... [Pg.4]

Oxidation of quinoxaline with aqueous nitric acid and 2,3-dimethyl-quinoxaline with 20% nitric acid yields 6-nitroquinoxaline-2,3-dione. Quinoxalinediones are also isolated when quinoxalines are oxidized with peracids. Electronegative substituents such as nitro and cyano in the... [Pg.95]

See other pages where 2.3- Dimethyl-6-nitroquinoxaline, oxidative is mentioned: [Pg.229]    [Pg.398]    [Pg.398]    [Pg.398]    [Pg.398]    [Pg.398]    [Pg.398]    [Pg.395]    [Pg.244]    [Pg.20]    [Pg.229]    [Pg.395]    [Pg.20]    [Pg.31]    [Pg.356]   


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2.3- Dimethyl -7-nitroquinoxaline

6,6-Dimethyl 1-oxid

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