Benzotriazole imidazoline and derivative and synthesis process and application thereof
A technology of benzotriazole imidazoline and benzotriazole, applied in the field of benzotriazole imidazoline, can solve the problems of oil field pipeline corrosion, serious, economic loss and the like, and achieve the effect of increasing corrosion resistance
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[0026] Example 1
[0027] Add 0.1 mol of benzotriazole, 0.21 mol of chloroacetic acid, and 50 mL (6 mol / L) of NaOH solution to a 250 mL round-bottom flask, stir for half an hour, and then heat and reflux for 2-6 hours. After the reaction is over, put the flask in ice water and slowly drop 60mL of 6mol / L HCl solution into the flask. At this time, a large amount of white solids can be seen to precipitate. When no more solids are precipitated, filter with suction and dry the solids for use. ;
[0028] The product of the previous step was placed in a 250ml round-bottomed flask, added 0.25mol of diethylenetriamine and 50mL (0.4mol) of xylene solution, stirred with a water separator, a magnetic stirrer, and heated by an electric heating mantle. It was found that there was water coming out. After 2-8 hours, it is found that anhydrous continues to flow out, continue to increase the temperature, continue to separate water for about 2-8 hours, after the anhydrous continues to flow out, stop...
Example Embodiment
[0029] Example 2
[0030] Add the benzotriazole imidazoline (0.1 mol) obtained in Example 1 with 0.24 mol of oleic acid and 20 mL (0.19 mol) of toluene into a 250 mL round-bottomed flask, and raise the temperature to separate water for about 2-5 hours to obtain benzotriazole The oximidazoline derivative, 70.3g of the product was received, and the yield was 92.63%.
[0031] Examples 1 and 2 involve specific reaction equations.
[0032]
Example Embodiment
[0033] Example 3
[0034] Add 1 mol of benzotriazole, 2.9 mol of chloroacetic acid, and 70 mL of NaOH solution (6 mol / L) to a 250 mL round-bottom flask, stir for half an hour, then heat up and reflux for 2-6 hours. After the reaction is over, slowly drop a 6mol / L HCl solution (100mL) into the flask. At this time, a large amount of white solids can be seen to precipitate. When no more solids are precipitated, filter with suction and dry the solids for later use.
[0035] The product of the previous step was placed in a 250mL round-bottomed flask, with 3.1 mol of ethylenediamine and 45 mL (0.35 mol) of xylene solution, using a water separator, magnetic stirrer to stir, and electric heating mantle heating. It was found that there was water out, and the water was separated about 2- After 8 hours, it was found that anhydrous continued to flow out, and the temperature was continued to be increased. After the continued water separation for about 2-8 hours, after the anhydrous continued to...
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