Curable composition, lithographic printing plate precursor, method for preparing lithographic printing plate, and compound
一种固化性组合物、化合物的技术,应用在平版印刷设备、印刷、印刷工艺等方向,能够解决显影性降低、稳定性低等问题
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[0656] Hereinafter, the present invention will be described in detail through examples, but the present invention is not limited to these. In addition, among the polymer compounds, except for the specifically specified polymer compounds, the molecular weight is the weight average molecular weight (Mw) as a polystyrene conversion value obtained by gel permeation chromatography (GPC), and the ratio of the repeating unit is the mole percentage . In addition, unless otherwise specified, "parts" and "%" mean "parts by mass" and "% by mass". In addition, Me represents a methyl group.
Synthetic example 1
[0657] [Synthesis Example 1: Synthesis of Compound 1]
[0658] (Synthesis of intermediate SM-5)
[0659] The synthesis scheme of intermediate SM-5 is shown below.
[0660] [Chemical formula 43]
[0661]
[0662] Add 217.2g (1.12mol) of 5-methyl-2,3,3-trimethylindole (the above SM-1) and 3-methoxypropyl tosylate (the above SM-1) to a 3L three-necked flask -2) 305.7 g (1.25 mol) and stirred at 120°C for 3.5 hours to obtain intermediate SM-3. After cooling this reaction liquid to 60 degreeC, 976.3 g of isopropanol was added, and it stirred at 40 degreeC. Furthermore, the aforementioned SM-4 was added to 265.0 g (0.50 mol) and 127.8 g (1.25 mol) of acetic anhydride. After 316.6 g (3.13 mol) of triethylamine was dropped, the mixture was stirred at 80°C for 2 hours. This reaction liquid was cooled to 5 degreeC, 500g of distilled water was added, and it stirred for 1 hour. The precipitated solid was collected by filtration, washed with 1000 g of distilled water, and dried with an air dr...
Synthetic example 2
[0675] [Synthesis Example 2: Synthesis of Compound 2]
[0676] (Synthesis of Compound 2)
[0677] The synthesis scheme of compound 2 is shown below.
[0678] [Chemical formula 46]
[0679]
[0680] To a 100L three-necked flask, 2.23 g (0.004 mol) of the above intermediate SM-6 and 20 ml of methanol were added, and 0.32 g (0.008 mol) of a 50% by mass aqueous sodium hydroxide solution was further added and stirred for 30 minutes to prepare SM-6. Dissolve. Next, 1.34 g (0.002 mol) of synthesizable SM-7 was added and dissolved by a known method. 10 ml of water was added thereto and stirred for 1 hour. Then, the precipitated solid was recovered by filtration, washed with 20 g of distilled water, and dried at room temperature to obtain 1.8 g (0.0019 mol) of compound 2.
[0681] The structure of the obtained compound 2 was identified by NMR. Below, the results of the evaluation are shown.
[0682] 1 H-NMR (400MHz, heavy dimethyl sulfoxide) δ = 0.85 (m, 3H), 1.17-1.4 (m, 10H), 1.67 (m, 2H),...
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