Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

2-Methylamino-5-nitropyridine

Alkoxy groups in the 2- or 4-positions of alkoxynitropyiidines are easily replaced by ammonia, alkylamines, or dialkylamines. Thus, 4-methylamino-3-nitropyridine (DC-43) is obtained in near quantitative yield by heating 4-ethoxy-3-nitropyridine hydrochloride in an autoclave with aqueous methyl-... [Pg.57]

Methylamination of 2-amino-3-nitropyridine gives in good yield 2-amino-6-methylamino-3-nitropyridine, while methylamination of 6-amino-3-nitro-pyridine only gives (in a small yield) 6-amino-2-methylamino-3-nitropyr-idine (Scheme 7). The activating influence of the 3-nitro group on the C-6 para position explains this difference in reactivity. [Pg.8]

Chloro-3-nitropyridine undergoes SNH methylamination at C-6 as well as amino-dechlorination at C-2, 2,6-bis(methylamino)-3-nitropyridine being obtained (Scheme 7). [Pg.8]

See other pages where 2-Methylamino-5-nitropyridine is mentioned: [Pg.519]    [Pg.519]    [Pg.13]    [Pg.1229]    [Pg.185]    [Pg.16]    [Pg.314]    [Pg.320]    [Pg.519]    [Pg.519]    [Pg.8]    [Pg.8]    [Pg.13]    [Pg.295]    [Pg.144]    [Pg.104]    [Pg.1229]    [Pg.119]    [Pg.182]    [Pg.238]    [Pg.269]   


SEARCH



2- 5-nitropyridine

2-Amino-6-methylamino-3-nitropyridine

5 -methylamino

© 2024 chempedia.info