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2.5- Diethoxy-3-isopropenylpyrazine

Diethoxy-3-(l-hydroxy-l-methylethyl)pyrazine (155) gave 2,5-diethoxy-3-isopropenylpyrazine (156) (TsOH, PhH, molecular sieves, reflux 80%) 6 2-(l-hydroxy-2-methylpropyl)-6-iodo-3-methoxypyrazine gave 2-iodo-5-methoxy-6-(2-methylprop-l-enyl)pyrazine (157) (TsOH, PhMe, reflux with H20 removal, 6 h 65%).1588... [Pg.102]

See other pages where 2.5- Diethoxy-3-isopropenylpyrazine is mentioned: [Pg.404]    [Pg.181]    [Pg.404]    [Pg.181]   
See also in sourсe #XX -- [ Pg.102 ]



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