Ethanolamine → N-2-Hydroxyethylperylene-3,4-dicarboximide

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Reaction Steps

190 mg (0.56 mmol) of perylene-3,4-dicarboxylic anhydride are reacted with 0.85 ml (1.40 mmol) of 2-aminoethanol and 1.18 g of imidazole under an argon inert atmosphere for 96 h as in 2c, and the reaction product is worked up and dried in a drying cabinet. To remove unreacted starting material, it is boiled in 10 per cent potassium carbonate solution and washed with hot water until the filtrate run-off is colourless. The brown-red product is dried in a drying cabinet at 120° C. and then recrystallized by extraction with toluene. Yield 50 mg (23%), m.p. >260° C. UV (CHCl3): λmax =489 nm, 509. Fluorescence (CHCl3, exc. 489 nm) λmax (Irel =546 nm (1), 579 (sh, 0.46).

Provenance & Evidence