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Benzotriazole imidazoline derivative, and preparation method and application thereof

A technology of benzotriazole imidazoline and benzotriazole, which is applied in the field of benzotriazole derivatives and its synthesis process, can solve the problems of low water viscosity, difficulty in forming a fluid lubricating film, extreme pressure and anti-wear It has the advantages of simple preparation process, easy operation and preparation, and good corrosion inhibition performance.

Inactive Publication Date: 2017-10-17
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the particularity of the water medium, water-based cutting fluids generally have the disadvantages of poor extreme pressure wear resistance and corrosion resistance; the viscosity of water is extremely low, and it is difficult to form an effective fluid lubricating film at room temperature

Method used

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  • Benzotriazole imidazoline derivative, and preparation method and application thereof
  • Benzotriazole imidazoline derivative, and preparation method and application thereof
  • Benzotriazole imidazoline derivative, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Example 1: Add 11.90g of benzotriazole to a 250ml three-necked flask, add 100ml of water as a solvent, add 5g of sodium hydroxide, stir at 90°C for 3 hours, add 11.65g of sodium chloroacetate, and react at 90°C After 3 hours, the product was cooled at room temperature and HCl was added until a large amount of precipitation, filtered and washed with water to remove chloride ions, and dried to obtain benzotriazole acetic acid, wherein the yield of sodium chloroacetate was as high as about 50%. Take 17.8 g of benzotriazole acetic acid, the product of the previous step, and add it to a three-necked flask, then add 12.38 g of diethylenetriamine, and add 50 ml of xylene as a solvent and a water-carrying agent. React at 140-160°C for 4 hours to remove the water generated in the reaction, react at 190-210°C for 2 hours to remove the water generated in the reaction, and then distill under reduced pressure for 1 hour to remove unreacted raw materials, that is, brown viscous liquid...

Embodiment 2

[0048] Example 2: Add 11.90g of benzotriazole to a 250ml three-necked flask, add 100ml of water as a solvent, add 5g of sodium hydroxide, stir at 92°C for 3.2 hours, add 11.65g of sodium chloroacetate, and react at 92°C After 3.2 hours, the product was cooled at room temperature and HCl was added until a large amount of precipitation, filtered and washed with water to remove chloride ions, and dried to obtain benzotriazole acetic acid, wherein the yield of sodium chloroacetate was about 50% higher. Take 17.8 g of benzotriazole acetic acid, the product of the previous step, and add it to a three-necked flask, then add 25.07 g of triethylenetetramine, and add 50 ml of xylene as a solvent and a water-carrying agent. React at 140-160°C for 6 hours to remove the water generated in the reaction, react at 190-210°C for 3 hours to remove the water generated in the reaction, and then distill under reduced pressure for 1 hour to remove unreacted raw materials, that is, brown viscous liqu...

Embodiment 3

[0049] Example 3: Add 11.90g of benzotriazole to a 250ml three-necked flask, add 100ml of water as a solvent, add 5g of sodium hydroxide, stir at 88°C for 2.8 hours, add 11.65g of sodium chloroacetate, and react at 88°C After 2.8 hours, the product was cooled at room temperature and HCl was added until a large amount of precipitation, filtered and washed with water to remove chloride ions, and dried to obtain benzotriazole acetic acid, wherein the yield of sodium chloroacetate was about 50% higher. Take 17.8 g of benzotriazole acetic acid, the product of the previous step, and add it to a three-necked flask, then add 22.72 g of tetraethylenepentamine, and add 50 ml of xylene as a solvent and a water-carrying agent. React at 140-160°C for 5 hours to remove the water generated in the reaction, react at 190-210°C for 2 hours to remove the water generated in the reaction, and then distill under reduced pressure for 1 hour to remove unreacted raw materials, that is, brown viscous li...

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Abstract

The invention discloses an imidazoline group-containing benzotriazole derivative, and a synthesis process and application thereof. The synthesis process comprises the following steps: taking benzotriazole as a raw material, and reacting with sodium monochloroacetate / ethyl chloroacetate / ethyl bromoacetate (wherein the reacting yield of the sodium monochloroacetate is highest) to form benzotriazole acetic acid, and performing dehydration and cyclization reaction with diethylenetriamine / triethylenetetramine / tetraethylenepentamine to generate the benzotriazole imidazoline derivative. The reaction conditions are easy to control; and the yield is high. The benzotriazole imidazoline derivative has a good corrosion inhibiting effect on YG8 hard alloy and Q235 low-carbon steel in an acidic water environment.

Description

technical field [0001] The invention belongs to the field of organic chemical industry, and relates to imidazoline-containing benzotriazole derivatives and a synthesis process thereof. The water-based lubricant prepared by the compound is suitable for YG8 hard alloy and Q235 low-carbon steel in acidic environment Used as a corrosion inhibitor. Background technique [0002] Lubricants are widely used in industry. Lubricants prolong the life of machines and machinery and reduce the loss of energy consumption. Under certain conditions, relative motion is only possible in the presence of lubricant. There are four types of lubricants: liquid, semi-solid, solid, and gas, commonly referred to as lubricating fluids, greases, solid lubricants, and gas lubricants. The main and most commonly used lubricants are liquid lubricants, namely lubricating oil and water-based lubricants. [0003] The main components of lubricating oil are base oil and additives. Base oil is the main compone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D403/06C10M133/44C23F11/14C10N40/22C10N30/12
CPCC07D403/06C10M133/44C10N2030/12C10N2040/22C23F11/149
Inventor 何忠义熊丽萍唐骏饶赛男雷娟红韩生
Owner EAST CHINA JIAOTONG UNIVERSITY
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