Sodium Carbonate → 4,5-Dichloro-4-fluoro-3,4,5,6-tetrahydrophthalic anhydride

Beteiligte Stoffe

Reaktionsschritte

4-chloro-3,6-dihydrophthalic anhydride (0.63 g) and N-chlorosuccinimide (0.47 g) in methylene chloride (6.2 ml) was added to pyridinium poly(hydrogen fluoride) at room temperature. The reaction mixture was stirred for 2 hours and then carefully poured into a two phase system containing solid sodium carbonate and methylene chloride. The suspension was filtered, the methylene chloride layer was dried over magnesium sulfate and the solvent removed under reduced pressure.

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