The synthesis hydroxyethyl imidazolines of NPA under the influence of ultrasound took place under the influence of the cavitation effect created by ultrasound. It became clear from the results that by applying the cavitation effect of ultrasound to the classical method of synthesis of imidazolines, it is possible to reduce the synthesis time by 2–5 times compared to other synthesis methods, obtaining imidazolines with a yield of 92–97%. The synthesis time for this synthesis was 4 hours, the molar ratio of acid and amine was 1:1, the amplitude of the ultrasonic processor was  55% and the final temperature was 200⁰C

doi.org/10.32737/0005-2531-2020-4-60-64