Hydrochloric Acid → HCID 20544472, compound

Participants

Reaction Steps

A mixture of ethyl 2-(4-oxo-6-methyl-4H-pyran-3-yloxy)acetate (8.3 g) in 1 N sodium hydroxide (40 ml) was stirred at room temperature for 30 minutes. To the mixture was added further 1 N sodium hydroxide (6 ml) and the resultant mixture was stirred for 30 minutes. To the reaction mixture was added dropwise conc. hydrochloric acid (4 ml) under ice-cooling, and resulting crystals were collected by filtration, washed with water, and dried to give crystals (6.8 g) of 2-(4-oxo-6-methyl-4H-pyran-3-yloxy)acetic acid.

Provenance & Evidence