61010-01-3Relevant articles and documents
A near-infrared light-emitting organic material of the preparation method
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Paragraph 0025; 0026; 0027; 0028; 0029, (2017/05/10)
The invention discloses a preparation method of a novel near-infrared organic luminescent material, which comprises the following steps: A. stirring 2-methyl cyclohexanone or cyclohexanone or cyclopentanone, chalcone, solid potassium hydroxide and benzyltriethylammonium chloride at room temperature to obtain a compound disclosed as chemical general formula 4; B. mixing the compound disclosed as chemical general formula 4 with R1-CHO to prepare a compound disclosed as chemical general formula 6, or mixing a compound 4a with 5 times of 1,4-dihydro-2,6-dimethoxybenzene to obtain a compound 5. After the compound is recrystallized and purified, the yield is greater than 80% and is much higher than the yield in the document. The method has the advantages of reasonable technological design and high yield, and is economical and feasible.