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2-Pyrazinecarbaldehyde

Methylthio-2-pyrazinecarbaldehyde (163, X = O) and the Witting reagent, (ethoxycarbonylmethylene)triphenylphosphorane, gave 2-(2-ethoxycar-bonylvinyl)-3-methylthiopyrazine (163, R = CH2C02Et) (neat reactants, N2, 135°C, 8 h 87%).1126... [Pg.103]

Hydroxymethyl-6-methyl-2,3-pyrazinedicarbonitrile (135) gave 5,6-dicyano-3-methyl-2-pyrazinecarbaldehyde (136) (activated Mn02, CH2C12, 20°C, 22 h 45%).1599... [Pg.212]

Amino-5-phenyl-2-pyrazinecarbaldehyde (19, R = H) gave 3-amino-5-phenyl-2-pyrazinecarboxylic acid (19, R = OH) (KMn04, HzO, 20°C, 1 h 28%).1385... [Pg.302]

Methoxypyrazine (251) gave 3-methoxy-2-pyrazinecarbaldehyde (252) (1,3,5-trioxane, 3% H2S04, FeS04, 30% H202) 13%), confirmed in structure by X-ray analysis of its 2,4-dinitrophenylhydrazone (253).1216... [Pg.337]

Dicyano-3-methyl-2-pyrazinecarbaldehyde (259) gave the Schiff base, 5-methyl-6-phenyliminomethyl-2,3-pyrazinedicarbonitrile (260) (PhNII2, A4 molecular sieves, AcOH, EtOH, 20°C, 4 h %).1599... [Pg.338]

Isopropyl-3,6-dimethoxy-2-methyl-2,5-dihydro-2-pyrazinecarbaldehyde (275) gave 2-(2,2-dibromovinyl)-5-isopropyl-3,6-dimethoxy-2-methyl-2,5-dihydropy-razine (276) (CBr4, PPh3, CH2C12, 0°C, A, 30 min then substrate j, 4 h ... [Pg.340]

Acetamido-2-pyrazinecarbaldehyde 3-Acetamido-2-pyrazinecarbohydr azide 3-Acetamido-2-pyrazinecarboxamide 6-Acetamido-2-pyrazinecarboxamide 6-Acetamido-2-pyrazinecarboxylic acid... [Pg.352]

Amino-6-cyclohexyl-2-pyrazinecarboxamide 3-Amino-5-cyclohexyl-2-pyrazinecarboxylic acid 3-Amino-6-cyclohexyl-2-pyrazinecarboxylic acid 3-Amino-/V-cyclopentyl-2-pyrazinecarboxamide 3-Amino-6-cyclopropyl-2-pyrazinecarbonitrile 3-Amino-6-cyclopropyl-2-pyrazinecarboxamide 3-Amino-6-cyclopropyl-2-pyrazinecarboxylic acid 3-Amino-5,6-dichloro-2-pyrazinecarbaldehyde 3-Amino-5,6-dichloro-2-pyrazinecarbonitrile 3-Amino-5,6-dichloro-2-pyrazinecarboxamide 3-Aniino-5,6-dichloro-2-pyrazinecarboxylic add 3-Amino-6-diethylaminomethyl-2-pyrazinecarbonitrile 3-Amino-5-diethylamino-2,6-pyrazinedicarbonitrile 5-Amino-3-dimethylamino-6-nitro-2-pyrazinecarbonitrile 3-Amino-5-dimethylamino-6-phenyl-2-pyrazinecarbohydrazide... [Pg.360]

Amino-3,6-dimethyl-2(177)-pyrazinone 3-Amino-5,6-diphenyl-2-pyrazinecarbaldehyde 3-Amino-5,6-diphenyl-2-pyrazinecarbohydrazide 3-Amino-5,6-diphenyl-2-pyrazinecarbonitrile... [Pg.361]

Amino-5-phenyl-2-pyrazinecarbaldehyde 3-Amino-5-phenyl-2-pyrazinecarbonitrile 3-Amino-6-phenyl-2-pyrazinecarbonitrile 3-Amino-6-phenyl-2-pyrazinecarbonitrile 4-oxide 3-Amino-A-phenyl-2-pyrazinecarboxamide 3-Amino-5-phenyl-2-pyrazinecarboxamide 3-Amino-6-phenyl-2-pyrazinecarboxamide 3-Amino-6-phenyl-2-pyrazinecarboxamide 4-oxide... [Pg.364]

Chloro-3,6-diisobutyl-2(17/)-pyrazinone 2-Chloro-3,6-diisopropyl-5-methylaminopyrazine 2-Chloro-3,6-diisopropylpyrazine 5-Chloro-3,6-diisopropyl-2-pyrazinecarbaldehyde 1-oxide 2-Chloro-3,6- diisopropylpyrazine 1 - oxide 2-Chloro-3,6-diisopropylpyrazine 4-oxide... [Pg.386]

Methoxy-2-pyrazinecarbaldehyde 6- Methoxy-2-py razi necarbohydrazide 3- Methoxy-2-py razi necarbonitrile... [Pg.437]

Methylamino-5-oxo-4,5-dihydro-2-pyrazinecarbaldehyde 3-Methylamino-5-oxo-4,5-dihydro-2-pyrazinecarboxamide Methyl 3-amino-5-oxo-4,5-dihydro-2-pyrazinecarboxylate Methyl 3-amino-6-phenoxy-2-pyrazinecarboxylate... [Pg.442]

Phenylpteridine (117) gave 3-ethyliminomethyl-6-phenyl-2-pyrazinamine (119) (neat EtNH2, 20°C, 4 h 78% via the adduct (118)] or a separable mixture of 4-ethylamino-7-phenylpteridine (120) and 3-amino-5-phenyl-2-pyrazinecarbaldehyde (121) [neat EtNH, KMnO4 (1 mol), 17°C, 5 h 26 and 38%, respectively, after separation the second, presumably via the Schiff base (119)] the aldehyde (121) was oxidized further to 3-ainino-5-phenyl-2-pyrazinecarboxylic acid (122) (KMnO4, H,O, 20°C, 1 h 28%). ... [Pg.65]

See other pages where 2-Pyrazinecarbaldehyde is mentioned: [Pg.65]    [Pg.117]    [Pg.181]    [Pg.315]    [Pg.337]    [Pg.339]    [Pg.339]    [Pg.340]    [Pg.340]    [Pg.374]    [Pg.388]    [Pg.388]    [Pg.394]    [Pg.398]    [Pg.400]    [Pg.400]    [Pg.402]    [Pg.403]    [Pg.407]    [Pg.407]    [Pg.413]    [Pg.416]    [Pg.423]    [Pg.432]    [Pg.449]    [Pg.449]    [Pg.450]    [Pg.455]    [Pg.455]    [Pg.455]   
See also in sourсe #XX -- [ Pg.315 ]

See also in sourсe #XX -- [ Pg.315 ]



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3 - Amino-5 -phenyl-2-pyrazinecarbaldehyde

3-Methoxy-2-pyrazinecarbaldehyde

3-Methylthio-2-pyrazinecarbaldehyde

Pyrazinecarbaldehydes

Pyrazinecarbaldehydes

Pyrazinecarbaldehydes oxidation

Pyrazinecarbaldehydes reduction

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