| 摘要 |
PYRAZINE PREPARATION A process for the preparation of trialkyl pyrazine compounds which comprises reacting an aqueous medium containing a 1-hydroxy-2-ketone, an ammonium compound and an aldehyde during which the 1-hydroxy-2-ketone is added dropwise to form a trialkyl pyrazine compound and isolating the trialkyl pyrazine compound.
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