Thionyl Chloride → 4-(chloromethyl)-N-cyclopropylpyridine-2-carboxamide

Participants

Reaction Steps

2.5 g (13.01 mmol) of N-cyclopropyl-4-(hydroxymethyl)pyridine-2-carboxamide (Example 52A) and 11.76 g (98.84 mmol) of thionyl chloride were combined and stirred at RT overnight. The reaction mixture was concentrated using a rotary evaporator. The residue was dissolved in ethyl acetate and washed once with saturated aqueous sodium bicarbonate solution. The organic phase was dried over magnesium sulfate, filtered and concentrated using a rotary evaporator. The residue was purified by column chromatography on silica gel 60 (mobile phase: cyclohexane/ethyl acetate 2/1).

Provenance & Evidence