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5-Amino-6-chloro-2,3-pyrazinedicarboxylic acid

Dichloro-2,3-pyrazinedicarboxylic acid (103, R = Cl) gave 5-amino-6-chloro-2,3-pyrazinedicarboxylic acid (103, R = NH2) [NH3 (liquid), 130°C, autoclave, 24 h 88% dangerously close to the critical temperature of ammonia ].947... [Pg.157]

See also in sourсe #XX -- [ Pg.157 ]

See also in sourсe #XX -- [ Pg.157 ]

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2,3-Pyrazinedicarboxylic acid

4-Amino-2-chloro-5-

5- Chloro-2,3-pyrazinedicarboxylic acid

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