Thionyl Chloride → 2-Chloromethyl-5-benzyloxy-4-pyridone

Participants

Reaction Steps

To a suspension of 5-benzyloxy-2-hydroxymethyl-4-pyridone (33 g) in benzene (500 ml) was added thionyl chloride (28.4 ml) at ambient temperature under stirring. After being stirred at the same temperature for 30 minutes, the mixture was refluxed for 4 hours. The resulting mixture was cooled to ambient temperature. The precipitate was collected by filtration, washed with benzene and dried under reduced pressure to give 5-benzyloxy-2-chloromethyl-4-pyridone (41.5 g).

Provenance & Evidence