Hydrochloric Acid → Furan-2-sulfonyl Chloride

Participants

Reaction Steps

Ninety ml of water, 410 ml of conc. HCl, and 68.0 g of lithium 2-furansulfinate were stirred and cooled to 10°-15°. Liquid chlorine (12.3 ml, 39.4 g) was added dropwise over a 30-minute period. The mixture was stirred an additional 30 minutes at 5°, poured onto ice and extracted with methylene chloride. Evaporation of the methylene chloride yielded 44 g 2-furansulfonyl chloride, b.p. 95° at 7 mm Hg;

Provenance & Evidence