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2-Chloro-3-isobutylpyrazine 4-oxide

Chloro-3-isobutylpyrazine 4-oxide gave 3-isobutyl-2( I // )-pyrazinone 4-oxide (111, R = Hu ) (5 M NaOH, reflux, 2 h 39%) 86 2-chloro-3-phenylpyrazine 4-oxide gave 3-phenyl-2( I //(-pyrazinone 4-oxide (111, R = Ph) (KOH, H20—EtOH, reflux, 1 h 30%) 1290 also analogues likewise.1290... [Pg.158]

Chloro-5-isobutylpyrazine 6-Chloro-5-isobutyl-2-pyrazinecarbothioamide 6-Chloro-5-isobutyl-2-pyrazinecarboxamide 2-Chloro-3-isobutylpyrazine 4-oxide 2-Chloro-5-isopentyl-3,6-dimethylpyrazine 2-Chloro-3-isopropenyl-6-isopropyl-5-methoxypyrazine 5-Chloro-6-isopropenyl-3-isopropyl-l-methyl-2(177)-pyrazinone... [Pg.390]

Chloro-3-isobutylpyrazine 4-oxide gave 3-isobutyl-2(l//)-pyrazinone 4-oxide (111, R = Bu ) (5 M NaOH, reflux, 2 h 39%) 2-chloro-3-phenylpyrazine... [Pg.158]

Benzyloxy-5-chloro-6-hydroxymethyl-3-isobutylpyrazine 4-oxide gave 2-benzyloxy-5-chloro-3-isobutyl-6-[(tetrahydropyran-2-yloxy)methyl]pyrazine 4-oxide (150) (3,4-dihydro-2//-pyran, TsOH.H20, CH2C12, 20°C, 1 h 95%).848... [Pg.214]

Chloro-3-isobutyl-6-methylpyrazine 1-oxide 2-Chloro-6-isobutyl-3-methylpyrazine 1-oxide 2-Chloro-6-isobutyl-3-methylpyrazine 4-oxide 2-Chloro-3-isobutyl-5-phenylpyrazine 2-Chloro-3-isobutylpyrazine... [Pg.390]

Chloro-2,5 diisobuty Ipyrazine 1 -oxide 2-(l -Acetoxy-2 -methylpropyl)-3- chloro-5-isobutylpyrazine 760a... [Pg.91]

Chloro-3,6-diisobutylpyrazine 1-oxide 5-(l -Acetoxy-2 -methyl)propyl-3-chloro-2-isobutylpyrazine 113b... [Pg.91]

TS-Butyl-3-hydrazino-5-isobutylpyrazine 1-oxide was prepared from the chloro analogue and hydrazine hydrate at 130 (313) and 2-(l -acetoxy-2 -methylpropyl)-... [Pg.150]

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]

Benzyloxy-5-chloro-6-hydroxymethyl-3-isobutylpyrazine 4-oxide gave 2-benzyloxy-5-chloro-3-isobutyl-6-[(tetrahydropyran-2-yloxy)methyl]pyrazine... [Pg.214]

See other pages where 2-Chloro-3-isobutylpyrazine 4-oxide is mentioned: [Pg.390]    [Pg.147]    [Pg.354]    [Pg.380]    [Pg.380]    [Pg.389]    [Pg.389]    [Pg.389]    [Pg.101]    [Pg.105]    [Pg.150]    [Pg.153]    [Pg.153]    [Pg.166]    [Pg.380]    [Pg.380]    [Pg.389]    [Pg.389]    [Pg.389]    [Pg.389]    [Pg.390]   


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2 -isobutylpyrazine

2- -5-isobutylpyrazine 1-oxide

2-Chloro-3 - 6- isobutylpyrazine

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