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US 9,850,208 B2Granted
Process for making 2-chloro-5-methylpyridine
AssigneeVertellus Holdings LLC
InventorsRamiah Murugan, Martin Grendze
Life of this patent
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Abstract
Processes for the preparation of 2-chloro-5-methylpyridine are described.
Claims14
A process for preparing 2-chloro-5-methylpyridine, the process comprising the step of:
- a) contacting 3-methylpyridine N-oxide in a diluent, at a first temperature of about −20° C. to about 20° C., with phosphoryl oxychloride (POCl3), and 2,2,6,6-tetramethylpiperidine.
Dependencies are inferred from the claim text.