Method of preparing 2,3,6-trichloropyridine and 2,3,5,6-tetrachloropyridine in the gas phase
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United States of America Patent
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Mar 7, 1989
Grant Date -
N/A
app pub date -
Mar 30, 1987
filing date -
Mar 31, 1986
priority date (Note) -
Expired
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Abstract
2,3,6-Trichloropyridine and 2,3,5,6-tetrachloropyridine are prepared by continuously reacting chlorine in the gas phase with one or more compounds such as 2,6-dichloropyridine and 2,3,6-trichloropyridine at a temperature of from about 200.degree. C. in the presence of an amount of catalyst effective to catalyze the reaction.
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