Colorant compound and coloring composition containing it
A technology of coloring composition and compound, applied in the direction of chemical instruments and methods, organic chemistry, photoplate-making process of patterned surface, etc., can solve the problems of improvement limitations of heat resistance and light resistance, and achieve excellent light resistance, excellent The effect of basic performance
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[0135] Hereinafter, the actions and effects of the present invention will be described in more detail with reference to specific examples of the present invention. However, these examples are for illustrative purposes only, and the scope of the present invention is not intended to be limited by these examples.
[0136]
preparation example 1
[0137] Preparation Example 1. Synthesis of Intermediate A
[0138]
[0139] Put 30g (188.45mmol) of intermediate 1, 27.93g (188.45mmol) of intermediate 1-A, 60g of benzoic acid and 200g of methyl benzoate into a 500ml one-neck round bottom flask (1-neck RBF), and place at 180 Stir at °C for 10 hours. Thereafter, the solution was cooled to room temperature, and 2000 ml of MeOH was added thereto, followed by stirring. The precipitate generated during this process was filtered under reduced pressure, washed with MeOH, and dried in a vacuum oven at 80 °C for 24 h to obtain Intermediate A. In this regard, it was confirmed by MS analysis that the molecular weight of Intermediate A obtained was 289 g / mol.
preparation example 2
[0140] Preparation Example 2. Synthesis of Compound 1
[0141]
[0142] 30ml of nitrobenzene and 3.89g (15.56mmol) of Intermediate 1-B were put into a 100ml two-neck round bottom flask (2-neck RBF), and then stirred. Thereafter, slowly dropwise add 5.55g (46.67mmol) SOCl 2 , and allowed to react at 95°C for 2 hours. Then, inject nitrogen gas for 30 min to remove residual SOCl 2and HCl. Thereafter, the solution was cooled to room temperature, and then 3 g (10.37 mmol) of Intermediate A and 3.15 g (31.11 mmol) of triethylamine were added and allowed to react at 90° C. for 3 hours. Then, the solution was added to diethyl ether, followed by stirring. The precipitate generated during this process was filtered under reduced pressure, washed with diethyl ether, and separated and purified by column chromatography to obtain compound 1. In this regard, the molecular weight of Compound 1 was confirmed to be 521 g / mol by MS analysis.
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