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Methyl 3-hydrazino-2-quinoxalinecarboxylate

Methyl 3-chloro-2-quinoxalinecarboxylate (113) gave a separable mixture of A,A -bis(3-methoxycarbonylqumoxalin-2-yl)hydrazine (114) and methyl 3-hydrazino-2-quinoxalinecarboxylate (115) [substrate, H2N1SIH2 H20 ( 1 equiv), EtOH, 20°C 70°C, short time 25% of each product after separation] or 3-hydrazino-2-qumoxalinecarbohydrazide (116) [H2N1SIH2 H20 ( 2.5 equiv), EtOH, 70°C, substrate during 30 min 95%]. °... [Pg.154]

See also in sourсe #XX -- [ Pg.154 ]

See also in sourсe #XX -- [ Pg.154 ]



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2-Hydrazino

3- -2-quinoxalinecarboxylic

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