Hydrochloric Acid → methyl 1,3-dithiane-2-carboxylate

Participants

Reaction Steps

Dissolve 192 g (1 mole) of ethyl 1,3-dithiane-2-carboxylate in 1 L of methanol and add 5 ml of concentrated hydrochloric acid. Stir at room temperature for 18 hours. Neutralize the mixture with 1 N sodium hydroxide and remove the methanol under reduced pressure. Take up the residue in 1 L of ether, wash with water, dry over magnesium sulfate and evaporate. Distil the residue under reduced pressure to obtain methyl-1,3-dithiane-2-carboxylate.

Provenance & Evidence