Novel compound and composition containing novel compound
A compound and carbon number technology, applied in organic dyes, chemical instruments and methods, methine/polymethine dyes, etc., can solve problems such as unsatisfactory heat resistance and light resistance
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Embodiment 1-1 and 1-2
[0225] [Example 1-1 and 1-2] Synthesis of Compound No.1 and No.2
[0226] An aldehyde compound (4 mmol), malononitrile (8 mmol), anhydrous piperazine (0.03 g) and dimethylacetamide (5 g) were added and dissolved in a reaction vessel, and stirred at 80° C. for 5 hours. 7 g of ethanol was added dropwise for crystallization, and the resulting solid was filtered, washed with ethanol, concentrated, purified by silica gel column chromatography (developing solution: toluene), and dried to obtain yellow solids, respectively. use 1 H-NMR and IR confirmed that the obtained yellow solid was the target object. In addition, the absorption wavelength characteristics were measured. The results are shown in [Table 1] and [Table 2].
Embodiment 1-3 and 1-4
[0227] [Example 1-3 and 1-4] Synthesis of Compound No.3 and No.4
[0228] An aldehyde compound (4 mmol), ethyl cyanoacetate (8 mmol), anhydrous piperazine (0.03 g) and dimethylacetamide (5 g) were added and dissolved in a reaction vessel, and stirred at 50° C. for 5 hours. 7 g of ethanol was added dropwise for crystallization, and the obtained solids were filtered and washed with ethanol to obtain yellow solids, respectively. use 1 H-NMR and IR confirmed that the obtained yellow solid was the target object. In addition, the absorption wavelength characteristics were measured. The results are shown in [Table 1] and [Table 2].
Embodiment 1-5
[0229] [Example 1-5] Synthesis of Compound No.5
[0230] An aldehyde compound (4 mmol), malononitrile (12 mmol), anhydrous piperazine (0.04 g) and dimethylacetamide (5 g) were added and dissolved in a reaction vessel, and stirred at 50° C. for 3 hours. 7 g of ethanol was added dropwise for crystallization, and the obtained solid was filtered and washed with ethanol to obtain a yellow solid. use 1 H-NMR and IR confirmed that the obtained yellow solid was the target object. In addition, the absorption wavelength characteristics were measured. The results are shown in [Table 1] and [Table 2].
[0231] [Table 1]
[0232] 1 H-NMR (solvent: CDCl 3 )
[0233]
[0234] [Table 2]
[0235]
[0236]
[0237] [Evaluation Examples 1-1 to 1-5] Evaluation of Absorption Wavelength Characteristics
[0238] with CHCl 3 The absorption wavelength characteristics of the compounds No. 1 to No. 5 obtained above and the comparative compounds No. 1 and 2 obtained above were evaluate...
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