Nitric Acid → 5,6-Dimethoxy-4-nitro-isobenzofuran-1,3-dione

Beteiligte Stoffe

Reaktionsschritte

4,5-Dimethoxy-phthalic acid (1.0 g) was cooled in ice-water bath. A cooled mixture of sulfuric acid (3.0 ml) and fuming nitric acid (3.0 ml) was added dropwise. The mixture was stirred for 10 minutes and left standing for 10 minutes. A mixture of brine and ice was added (1:1). The solid was filtered off, washed with water and recrystallized from ethanol.

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