Triethylamine → 5-(Chloromethyl)-2-methylpyridine

Participants

Reaction Steps

Triethylamine (96 ml, 0.69 mol) was added to a solution of (6-methyl-3-pyridyl)methanol (28.4 g, 0.23 mol) in methylene chloride (230 ml) while cooling on ice. Mesyl chloride (26.8 ml, 0.35 mol) was then slowly added dropwise over a period of 20 minutes at the same temperature and the mixture was stirred for 10 hours while gradually raising the temperature to room temperature. After confirming completion of the reaction by thin layer chromatography, the mixture was diluted with ethyl acetate and poured into saturated aqueous NaHCO3. After separating the aqueous layer, extraction was performed with ethyl acetate, and the collected organic layer was washed with saturated aqueous NaCl and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to yield the title compound (12.2 g). This was used without further purification for the following reaction.

Provenance & Evidence