Big Chemical Encyclopedia

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

Articles Figures Tables About

3-Amino-5-phenyl-2-pyrazinecarboxylic

Methyl 2-(/8-aminostyrylimino)-2-cyanoacetate (48) gave methyl 3-amino-5-phenyl-2-pyrazinecarboxylate (49) (MeONa, MeOH—CH2C12, 20°C, 15 min 70%).941... [Pg.9]

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]

Amino-5-phenyl-2-pyrazinecarboxylic acid 3-Amino-6-phenyl-2-pyrazinecarboxylic acid... [Pg.365]

Methylamino-5-phenyl-2-pyrazinecarboxamide Methyl 3-amino-5-phenyl-2-pyrazinecarboxylate Methyl 3-amino-6-phenyl-2-pyrazinecarboxylate 3-Methylamino-5-phenyl-2-pyrazinecarboxylic acid 3-Methylamino-6-phenyl-2-pyrazinecarboxylic acid Methyl 3-amino-5-propionyl-2-pyrazinecarboxylate 3-Methylamino-6-(prop-l-ynyl)-2-pyrazinecarbonitrile 3-Methylamino-2-pyrazinamine... [Pg.442]

Methyl 3-amino-2-pyrazinecarboxylate (157) gave methyl 3-isothiocyanato-2-pyrazinecarboxylate (158) (SCC12, CaC03, CH2C12, 5 — 20°C, 48 h 53%), and thence methyl 3-[(V -phenyl(thioureido)]-2-pyrazinecarboxylate (159) (PhNH2, EtOH, reflux, 4 h 74%) analogues likewise.1558... [Pg.283]

Methyl 3-amino-2-pyrazinecarboxylate (172, R = C02Me) gave methyl 3-triph-enylphosphoranylideneamino-2-pyrazinecarboxylate (173, R = C02Me) (PPh3, Et3N, C2CI6, PhH, reflux, 5 h 96%), and thence 2-methoxy-3-phenyl-4(3//)-pteridinone (174) (PhNCO, PhH, 20°C, 12 h then MeOH J, reflux, 3 h 70% without isolation of intermediates).54 1089... [Pg.286]

Ethyl 3-amino-6-phenyl-2-pyrazinecarboxylate from its 4-oxide (251) (PC13, THF, 0 - 20°C, 40 min 79%).1522 Also other examples.544 1339,1517,1530... [Pg.231]

Methyl 3-amino-6-phenyl-2-pyrazinecarboxylate (7, R = Me) gave 3-amino-6-phenyl-2-pyrazinecarboxylic acid (7, R = H) (NaOH, MeOH—II20, 20°C, 1 h 88%).599... [Pg.300]

Ethyl 3-amino-6-phenyl-2-pyrazinecarboxylate (80, R = OEt) gave 3-amino-/V-methyl-6-phenyl-2-pyrazinecarboxamide (80, R = NHMe) [MeNH2, H20, 80°C, sealed ( ), 2 h 85%] 1522 also many analogues and homologues likewise] 1339 1517 1522 1604... [Pg.312]

Methyl 3-amino-6-methyl-5-phenyl-2-pyrazinecarboxylate gave 3-guanidinocar-bonyl-5-methyl-6-phenyl-2-pyrazinamine (97) [HN=C(NH2)2, boiling MeOH, 1 min 83%].941... [Pg.314]

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]

Ethyl 3-amino- l-benzyl-5-isobutyl-6-oxo-1,6-dihydro-2-pyrazinecarboxylate 4-oxide Ethyl 3-amino-6-benzyloxy-5-isobutyl-2-pyrazinecarboxylate 4-oxide Ethyl 3-amino-6-chloro-5-ethoxy-2-pyrazinecarboxylate Ethyl 6-amino-3-chloromethyl-5-cyano-2-pyrazinecarboxylate Ethyl 6-amino-3-chloromethyl-5-cyano-2-pyrazinecarboxylate 1-oxide Ethyl 3-amino-5-chloro-6-methyl-2-pyrazinecarboxylate Ethyl 3-amino-5-chloro-6-phenyl-2-pyrazinecarboxylate Ethyl 5-amino-6-cyano-3-methyl-2-pyrazinecarboxylate Ethyl 6-amino-5-cyano-3-methyl-2-pyrazinecarboxylate Ethyl 6-amino-5-cyano-3-methyl-2-pyrazinecarboxylate 1-oxide Ethyl 3-amino-5,6-dimethyl-2-pyrazinecarboxylate 5-Ethylamino-6-ethylcarbamoyl-3-methylami no-2-pyrazinecarboxamide... [Pg.419]

Methyl 3-amino-6-bromo-5-ethoxycarbonylmethyl-2-pyrazinecarboxylate Methyl 3-amino-6-bromo-5-methyl-2-pyrazinecarboxylate Methyl 3-amino-6-bromo-5-phenyl-2-pyrazinecarboxylate... [Pg.438]

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 3-Amino-5-phenyl-2-pyrazinecarboxylic is mentioned: [Pg.65]    [Pg.420]    [Pg.65]    [Pg.440]    [Pg.365]    [Pg.420]    [Pg.420]    [Pg.420]    [Pg.440]   


SEARCH



2-pyrazinecarboxylate

5-Amino-2- -4-phenyl

© 2024 chempedia.info