Ethanethiol → HCID 22118376, compound

Participants

Reaction Steps

A methanolic solution of 0.8 g (4 mmol, 3 eq.) containing about 28 wt % sodium methoxide was diluted with 5 ml of anhydrous methanol, and 0.5 ml (6.8 mmol, 1.5 eq.) of ethanethiol was added. The mixture was stirred at room temperature for 5 minutes, and then 0.5 g (1.3 mmol) of 3,3,5-trimethyl-4-methanesulfonyloxy-6-ethoxycarbonylthiochroman-1,1-dioxide was added. The mixture was refluxed for 8 hours, and allowed to stand at room temperature for 5 days. The reaction mixture was diluted with 100 ml of ethyl acetate and washed with 50 ml of water twice, and an aqueous layer was separated and cooled in an ice bath. The aqueous layer was acidified with 5 wt % hydrochloric acid and extracted with 100 ml of ethyl acetate, and an organic layer was dried over sodium sulfate. The solvent was distilled off, and the residue was dried under reduced pressure to give 0.32 g (yield 75%) of a yellowish solid.

Provenance & Evidence