Potassium Carbonate → Ethyl 3-[[[3-(4-acetyl-3-hydroxy-2-propylphenoxy)-2-hydroxypropyl]thio]methyl]-1-oxa-4-thiaspiro[4.4]nonane-7-acetate

Participants

Reaction Steps

3-(2-n-Propyl-3-hydroxy-4-acetylphenoxy)-1,2-epoxypropane (1.5 g, 0.006 mol) (described in U.S. Pat. No. 4,565,882) is dissolved in 20 ml of methyl ethyl ketone. To this solution is added the mercaptan of Example G (1.75 g, 0.006 mol) and anhydrous potassium carbonate (2.5 g) and the reaction mixture is refluxed with stirring under a nitrogen atmosphere for 24 hrs. The reaction is cooled to room temperature, filtered and the filtrate is concentrated on a rotary evaporator. The residue is chromatographed on silica gel using mixtures of ethyl acetate and hexane as eluents to give the titled compound.

Provenance & Evidence