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2.5- Dichloro-3.6-diethylpyrazine

Chloro-3,6-diethylpyrazine (119, R = H) gave 2,5-diethyl-3-methylpyrazine (118) [Me3Al, Pd(PPh3)4, dioxane—C6H14, A, reflux, 2 h 88%] 280 2,5-dichloro-3,6-diethylpyrazine (119, R = Cl) gave 2,5-diethyl-3,6-dimethyl-pyrazine (120) (likewise but reflux, 4 h 93%) 280 and many homologues and their TV-oxides were made similarly.280,282... [Pg.97]

Dichloro-3,6-diethylpyrazine 1,4-dioxide (112) gave 3,6-diethyl-l,4-dihy-droxy-3,6-dihydro-2,5(l//, 4//)-pyr tzinedionc (114), presumably via the dimethoxy intermediate (113) (MeONa, dioxane, 110°C (reflux ), 4 h then 10 M HC1J, 52%).1283... [Pg.159]

See other pages where 2.5- Dichloro-3.6-diethylpyrazine is mentioned: [Pg.401]    [Pg.401]    [Pg.401]    [Pg.401]    [Pg.401]    [Pg.401]    [Pg.380]    [Pg.401]    [Pg.401]    [Pg.401]    [Pg.54]    [Pg.401]    [Pg.401]    [Pg.401]   


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2- -3,6-diethylpyrazine

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