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2-Chloro-5-nitropyrazine

Bromo-5,6-dichloro-3-nitropyrazine (95) gave 2-chloro-3,5-bis(2-hydrox-yethylamino)-6-nitropyrazine (96) (HOCH2CH2NH2, Et3N, PrOII, <10 —>... [Pg.155]

Chloro-3-dimethylamino-6-nitropyrazine (184) gave 3-dimethylamino-6-nitro-2-pyrazinecarbonitrile (185) (CuCN, Me2NCIIO, 155°C, 18 h 62%).1313... [Pg.173]

Acetamido-6-bromo-2-pyrazinecarboxamide 6-Acetamido-5-bromo-2-pyrazinecarboxylic acid 2-Acetamido-5-chloro-3-guanidinocarbonylpyrazine 2-Acetamido-5,6-dichloro-3-nitropyrazine... [Pg.351]

Reduction of 2,6-diamino-3,5-dinitropyrazine in dimethylacetamide with hydrogen over platinum oxide (or with sodium sulfide and ammonium chloride in water at room temperature) gave 2,3,5-triamino-6-nitropyrazine (1180), but reduction with hydrogen and 10% palladium on charcoal at 50p.sJ. gave tetraamino-pyrazine (1180). 2-Amino-5hydrochloric acid at reflux gave 2-chloro-5-(3, 3 -dimethylureido)-... [Pg.238]

The brominations of 2-amino-3-carboxypyrazine (804), 2-amino-5-bromo-3-carboxypyrazine (805, 806), and 2-amino-5-bromo-3-methoxycarbonylpyrazine (807) to 2-amino-3,5-dibromopyrazine have been described in Section V.IB (2) nitrations of 2-amino-3-carboxy-5-chloro-6-ethylaminopyrazine to 2-amino-5-chloro-6-ethylamino-3-nitropyrazine (1181) and 2,6-diamino-3,5-dicarboxypyrazine... [Pg.257]

See other pages where 2-Chloro-5-nitropyrazine is mentioned: [Pg.155]    [Pg.260]    [Pg.393]    [Pg.155]    [Pg.155]    [Pg.260]    [Pg.393]    [Pg.393]    [Pg.101]    [Pg.210]    [Pg.237]    [Pg.238]    [Pg.155]    [Pg.260]    [Pg.393]    [Pg.248]   
See also in sourсe #XX -- [ Pg.260 ]

See also in sourсe #XX -- [ Pg.260 ]



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