Реакция #55622

Уравнение реакции

HCl

lithium 2-furansulfinate

chlorine

→

2-furansulfonyl chloride

Растворители

water

Условия реакции

Обработка

1. 1
   Температураcooled to 10°-15°
2. 2
   workup.ADDITIONpoured onto ice
3. 3
   Экстракцияextracted with methylene chloride
4. 4
   ДругоеEvaporation of the methylene chloride

Методика

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 of 2-furansulfonyl chloride, b.p. 95° at 7 mm Hg; IR (neat) 3400 (m), 3120, 1800, 1550 (m), 1450 (S), 1380 (VS), 1210, 1160, 1120 (VS), 1035 (m), 1010 (VS), 913, 882 (S).

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