Process for producing 2,3,5-collidine and/or 2,3,5,6-tetramethylpyridine
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United States of America Patent
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Apr 14, 1987
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N/A
app pub date -
Jul 10, 1985
filing date -
Jul 13, 1984
priority date (Note) -
Expired
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Abstract
Process for producing 2,3,5-collidine and/or 2,3,5,6-tetramethylpyridine which is characterized by reacting 3,5-lutidine as the starting material with an aliphatic alcohol having 1 to 4 carbon atoms, in the presence of a catalyst for hydrogenation at a temperature of 200.degree. C. or higher. The above-mentioned 2,3,5-collidine and/or 2,3,5,6-tetramethylpyridine are important compounds as intermediates for synthesizing various pharmaceutical chemicals.
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