Reaktion #8939

Reaktionsgleichung

1,3-benzodioxole

sulfuryl chloride

→

(1,3-benzodioxol-5-yl)sulfonyl chloride

Ausbeute 16.3%

Lösungsmittel

N,N-dimethylformamide

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigewhereupon a solid formed
2. 2
   TemperaturThe reaction was cooled
3. 3
   Extraktionextracted with methylene chloride
4. 4
   Trocknendried over magnesium sulfate
5. 5
   Filtrationfiltered
6. 6
   Einengenconcentrated
7. 7
   Sonstigeto give 7.32 g of crude material as a black oil
8. 8
   SonstigeThis was chromatographed on silica gel using 20% methylene chloride/hexane

Vorschrift

To a solution of 4.25 g of anhydrous N,N-dimethylformamide at 0° C. under nitrogen was added 7.84 g of sulfuryl chloride, whereupon a solid formed. After stirring for 15 minutes, 6.45 g of 1,3-benzodioxole was added, and the mixture heated at 100° C. for 2 hours. The reaction was cooled, poured into ice water, extracted with methylene chloride, dried over magnesium sulfate, filtered and concentrated to give 7.32 g of crude material as a black oil. This was chromatographed on silica gel using 20% methylene chloride/hexane to afford 1.9 g of (1,3-benzodioxol-5-yl)sulfonyl chloride.

Quelle