1- Benzyloxy-5,6-dimethyl-2 pyrazinone

For example, I -bcnzyloxy-2(l //)-pyrazinone (217, R = H) afforded 70% of 1-hydroxy-2( I //)-pyrazinone (218, R = H) [sometimes written as its tautomer, 2-pyrazinol 1-oxide (218a, R = H) on catalytic hydrogenation over palladium-on-charcoal in methanol for 20 min.588 The homologous l-benzyloxy-5,6-dimethyl-2( I //(-pyrazinone (217, R = Me) gave l-hydroxy-5,6-dimethyl-2(l//)-pyrazinone (218, R = Me), either by a similar hydrogenation (76%) or by hydrolysis in acetic acid-hydrogen bromide under reflux for 10 min (81%, as hydrobromide).588 1085... [Pg.226]

Aminopentanoyl)ethyl]-l-benzyloxy-5,6-dimethyl-2(l//)-pyrazinone (311) and a coligand afforded a gallium complex that showed promise for extraction of primary ammonium ions.179... [Pg.240]

Benzyloxy-5,6-diphenyl-2(l//)-pyrazinone 5- Benzyloxy-1 -hydroxy 3,6-dimethyl-... [Pg.373]

Benzyloxy-6-hydroxymethyl-3-isobutylpyrazine 4-oxide 2-Benzyloxy-6-iodomethyl-3-isobutyl-5-methoxypyrazine 4-oxide 2-Benzyloxy-3-isobutyl-6-mesyloxy-methyl-5-methoxypyrazine-4-oxide 1 - Benzyloxy-3 - (2-methoxycarbonyl-ethyl)-5,6-dimethyl-2(l/7)-pyrazinone... [Pg.373]

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