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A photoactive heteropolycyclic compound and its preparation method

A compound and heteropolycyclic technology, applied in the field of photoactive heteropolycyclic compounds and their preparation, can solve the problems of insufficient high-end products, backward technical level, insufficient application research and development, etc., and achieve low cost, environmental friendliness and no pollution, Easy-to-source effects

Active Publication Date: 2020-09-11
CHANGZHOU VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, insufficient application research and development and backward technical level make it difficult for the domestic fluorine chemical industry to get rid of the passive situation of excess low-end products and insufficient high-end products

Method used

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  • A photoactive heteropolycyclic compound and its preparation method
  • A photoactive heteropolycyclic compound and its preparation method
  • A photoactive heteropolycyclic compound and its preparation method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0038] 1. Preparation of photoactive heteropolycyclic compounds

[0039] (1) 2-chloroisophthalaldehyde and 2,6-diaminobenzodithiazole with a molar ratio of 1:1.1 are added to the reaction vessel, a single solvent mesitylene is added dropwise, the volume of mesitylene and the reaction The volume-to-weight ratio of the total mass of the reactant is 10 milliliters: 1 gram, then add 0.5% acetic acid of the total mass of the reactant, and perform ultrasonic treatment to make it mix uniformly;

[0040] (2) Place the reaction vessel in liquid nitrogen to freeze, vacuumize, seal the opening of the reaction vessel, and react for 3 days at a reaction temperature of 110° C.;

[0041] (3) After the reaction, the solvent was distilled off under reduced pressure, dissolved in dichloromethane, washed 3 times with deionized water, dried overnight with anhydrous sodium sulfate, filtered, rotary evaporated to remove dichloromethane, and vacuum-dried to obtain intermediate product;

[0042] (4...

Embodiment 2

[0049] 1. Preparation of photoactive heteropolycyclic compounds

[0050] (1) 2-chloroisophthalaldehyde and 2,6-diaminobenzobithiazole are added into the reaction vessel with a molar ratio of 1:1.3, and a single solvent 1,4-dioxane is added dropwise, 1, The volume-to-weight ratio of the volume of 4-dioxane to the total mass of the reactant is 8 milliliters: 1 gram, then add hydrochloric acid with 0.8% of the total mass of the reactant, and ultrasonically treat it to make it evenly mixed;

[0051] (2) Place the reaction vessel in liquid nitrogen to freeze, vacuumize, seal the opening of the reaction vessel, and react for 4 days at a reaction temperature of 90° C.;

[0052] (3) After the reaction, the solvent was distilled off under reduced pressure, dissolved in dichloromethane, washed 3 times with deionized water, dried overnight with anhydrous sodium sulfate, filtered, rotary evaporated to remove dichloromethane, and vacuum-dried to obtain intermediate product;

[0053] (4) ...

Embodiment 3

[0060] 1. Preparation of photoactive heteropolycyclic compounds

[0061] (1) 2-chloroisophthalaldehyde and 2,6-diaminobenzodithiazole with a molar ratio of 1:1.5 are added to the reaction vessel, and the volume of mesitylene and 1,4-dioxane is added dropwise A mixed solvent with a ratio of 1:3, the volume-to-weight ratio of the volume of the mixed solvent to the total mass of the reactants is 15 milliliters: 1 gram, then add sulfuric acid with 1% of the total mass of the reactants, and perform ultrasonic treatment to make it evenly mixed;

[0062] (2) Place the reaction vessel in liquid nitrogen to freeze, vacuumize, seal the opening of the reaction vessel, and react for 2 days at a reaction temperature of 135° C.;

[0063] (3) After the reaction, the solvent was distilled off under reduced pressure, dissolved in dichloromethane, washed 3 times with deionized water, dried overnight with anhydrous sodium sulfate, filtered, rotary evaporated to remove dichloromethane, and vacuum...

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Abstract

The invention belongs to the field of organic functional materials, and particularly relates to a heteropolycyle compound having photo-activity and a preparation method thereof, wherein the structureof the compound is represented as the formula (I). The heteropolycyle compound in the invention has excellent photo-activity, wherein the compound has a large specific surface area due to the heteropolycyle structure, so that oxygen inhibition is effectively overcome. The compound, used for initiating polymerization of a monomer, is high in conversion rate. The preparation method is gentle in reaction conditions, wherein the reactions are carried out under normal pressure, so that the method is simple in operation; the method employs accessible raw materials, is low in cost, is environment-friendly and pollution-free, and is suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the field of organic functional materials, and specifically relates to a photoactive heteropolycyclic compound and a preparation method thereof. Background technique [0002] UV curing refers to a method in which photoinitiators are excited to become free radicals or cations under the irradiation of ultraviolet rays, thereby initiating a polymerization and curing reaction between monomers. Compared with thermal curing, UV curing technology has the advantages of less environmental pollution, high film quality, and low energy consumption, so it is widely used in the fields of photocuring coatings, adhesives, and ink printing. Moreover, with the increasingly stringent control on the emission of organic volatile components, UV curing technology will have broader development prospects. Photoinitiator is an important part of photopolymerization system. Free radical photopolymerization is the most widely used polymerization system at...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D513/22C09K11/06C08F2/50C08F220/14C08F220/06C08F220/20
CPCC07D513/22C08F2/50C08F220/14C09K11/06C09K2211/1007C09K2211/1037C08F220/06C08F220/20
Inventor 刘巧云秦海芳祁秀秀杨怡
Owner CHANGZHOU VOCATIONAL INST OF ENG
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