Reaktion #593164

Reaktionsgleichung

benzene sulfonyl chloride

bmim

m-xylene

benzene sulfonyl chloride

→

2,4-dimethyldiphenylsulfone

Ausbeute 99.0%

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigeequipped with a magnetic stirrer
2. 2
   Temperaturreflux condenser
3. 3
   TemperaturThe mixture was heated
4. 4
   Temperaturunder reflux for 18 hours

Vorschrift

Zinc(II) bis-triflimide (0.062 g, 1 mol %) was dissolved in [bmim] [NTf2] (1.0 g) in a round-bottomed flask equipped with a magnetic stirrer and reflux condenser and m-xylene (2.12 g, 20 mmol) and benzene sulfonyl chloride (1.76 g, 10 mmol) were added. The mixture was heated under reflux for 18 hours and was analysed by gas chromatographic analysis as in previous examples. All the benzene sulfonyl chloride had reacted and mostly 2,4-dimethyldiphenylsulfone had formed (yield=99%, 20:1 isomer ratio {by NMR}). The major product is shown below, the structure of the minor isomer is not known but is believed to be the 2,6-dimethyl isomer.

Quelle