Reaktionsgleichung
[Cl:1][S:2]([OH:5])(=O)=[O:3].[Br:6][C:7]1[CH:12]=[CH:11][CH:10]=[C:9]([CH2:13][CH2:14][Br:15])[CH:8]=1>>[Br:6][C:7]1[CH:12]=[CH:11][C:10]([S:2]([Cl:1])(=[O:5])=[O:3])=[C:9]([CH2:13][CH2:14][Br:15])[CH:8]=1Komponenten
3
Reaktionsbedingungen
- Temperatur
- 0 °C
Versuchsvorschrift
Chlorosulfonic acid (17 mL) was added dropwise to 1-bromo-3-(2-bromo-ethyl)-benzene (5 g, 19 mmol) at 0° C. The mixture was stirred at 0° C. for 1 h then an additional 3 h at rt. The mixture was poured into an ice-water slowly and extracted with methylene chloride, and the combined organic layers were evaporated under reduced pressure to give 4.3 g of crude 4-Bromo-2-(2-bromo-ethyl)-benzenesulfonyl chloride which was used directly for next reaction. MS (ESI) 342.9 (M-Cl+OH)−.
Aufarbeitung
- customan additional 3 h
- customat rt
- extractionextracted with methylene chloride
- customthe combined organic layers were evaporated under reduced pressure
Quellen und Nachweise
- ORD-Eintrag
- ord-cfa71436c29c43638aed62952a292485
- Quelldatensatz
- uspto-grants-2011_03
- Patentnummer
- US07902194B2
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