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With acetic acid; for 2.0h;Reflux; Inert atmosphere;
General procedure: 2,3-naphthalene dicarboxylic anhydride (0.198 g, 0.001 mol)And o-phenylenediamine (0.108 g, 0.001 mol)Was added together with glacial acetic acid (10 mL), and the mixture was refluxed for 2 hours in a nitrogen stream, followed by heating and condensation. As a result, yellow crystals were precipitated. The precipitated yellow crystals were recrystallized from DMF to obtain a novel compound 1 (hereinafter referred to as Dye 1) according to Example 1 of the present invention.
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[ 117-08-8 ]
[ 81-30-1 ]
[ 479-27-6 ]
[ 20749-67-1 ]
[ 4578-87-4 ]
[ 20749-68-2 ]
Yield
Reaction Conditions
Operation in experiment
With 50% by weight of the total weight of vinylpyrrolidine and acrylate at 110 - 180℃; for 1h; Inert atmosphere;
5 Example 5
take 1 molar equivalent of compound 3, 1 molar equivalent of compound 5, 3 molar equivalent of compound a, 0.3 molar equivalent of zinc acetate, And 50% by weight of the total weight of compound 3, 5, a vinylpyrrolidine and Acrylate copolymer, stir in a kneader at 110°C under nitrogen for 1 hour, then raise the temperature to 180°C, continue the reaction, monitor the completion of the reaction with infrared spectroscopy, until the 1770cm-1 position in the infrared spectrum After the characteristic peak of acid anhydride disappears, stop heating to obtain a black paste product, the main components of which are as follows:
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