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30413-56-0

4-ethynyl-2-Methylpyridine synthesis

3synthesis methods
-

Yield:30413-56-0 88%

Reaction Conditions:

with potassium carbonate in methanol at 60; for 2 h;

Steps:

203

A suspension of 2-methyl-4-[(trimethylsilyl)ethynyl]pyridine (1.63 g, 8.62 mmol) and potassium carbonate (5.95 g, 43.1 mmol) in methanol (30 mL) was stirred for 2 h at 60 0C. The methanol was evaporated in vacuo, water was added and the mixture was extracted with dichloromethane. The combined organic phases were dried over sodium sulfate and concentrated in vacuo to give 890 mg (88% yield) of the title compound: MS (ESI) m/z

References:

WO2008/76046,2008,A1 Location in patent:Page/Page column 188-189

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