Process for the production of 2-pyridylpyridine derivatives
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United States of America Patent
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Jan 7, 2003
Grant Date -
N/A
app pub date -
Dec 12, 2001
filing date -
Jun 14, 1999
priority date (Note) -
Expired
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Abstract
A process for producing a 2-pyridylpyridine derivative usable as an intermediate for medicines or agricultural chemicals is provided, which does not require expensive metal catalysts, which does not cause environmental problems, and which can be conducted on an industiral scale. The process comprises the step (A) of producing an amidrazone compound from a cyano group-containing heterocyclic compound in water, the step (B) of producing a 1,2,4-triazine compound from the amidrazone compound in water, and the step (C) of producing a 2-pyridylpyridine derivative from the 1,2,4-triazine compound.
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