5-Methyl-2-pyrazinamine 4-oxide

Methyl-2-pyrazinamine 4-oxide (33, R = H) gave 3-bromo-5-methyl-2-pyraz-inamine 4-oxide (33, R = Br) (NBS, Me2SO—H20,15°C, 4 h 79%, initially as a complex).1508... [Pg.143]

Bromo-5-methyl-2-pyrazinamine 4-oxide (187, R = Br) gave 3-amino-6-methyl-2-pyrazinecarbonitrile 1-oxide (187, R = CN) (CuCN, NaCN, Me2NCHO, 110°C, reflux, 4 h 59%).1508... [Pg.174]

Bromo-5-methyl-2-pyrazinamine 3-Bromo-5-methyl-2-pyrazinamine 4-oxide 2-Bromo-3-methylpyrazine 2-Bromomethylpyrazine 1,4-dioxide... [Pg.378]

Benzyl-5-methyl-2-pyrazinamine 1-oxide (275) gave 2-acetoxy-5-benzyl-6-di-acetylamino-3-methylpyrazine (276) (Ac20—AcOK, reflux, 10 min 67%).883... [Pg.235]

Ethyl-3-methyl-5-phenyl-2(177)-pyrazinone 5-Ethyl-3-methyl-2-pyrazinamine 1-oxide 2-Ethyl-3-methylpyrazine... [Pg.422]

Methyl-5-phenyl-2-pyrazinamine 1-oxide 3-Methyl-6-phenyl-2-pyrazinamine 1-oxide... [Pg.447]

Methyl-3-phenyl-2-pyrazinamine 1-oxide 2- Methyl-3 -phenylpyrazine... [Pg.447]

Benzyloxy-3-hydroxymethyl-6-isobutyl-2-pyrazinamine 1-oxide (57, R = CH2OH) gave 2-benzyloxy-5-chloro-6-hydroxymethyl-3-isobutylpyrazine 4-oxide (58, R = ( 111 )11) (Bu CHjONO, CuCl—CuCli, N2, MeCN, 20°C, 30 min 75%) " and methyl 3-amino-6-benzyloxy-5-isobutyl-2-pyrazinecar-boxylate 4-oxide (57, R = CO2Me) gave methyl 6-benzyloxy-3-chloro-5-isobutyl-2-pyrazinecarboxylate 4-oxide (58, R = CO2Me) (likewise but 90 min 61%) ... [Pg.147]

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