| Symbol | Acid | Amine | Molar ratio acid:amine | Amplitude of ultrasonic vibrations % | Duration of reaction, hrs | Temperature of reaction, ˚C | Yield of imidazolines, % |
| FA-Im(NH2) | Fatty acid | DETA | 1:1.5 | 50 | 4.5 | 200 | 90.2 |
| FA-Im(OH) | HEED | 1:1.5 | 50 | 4.5 | 200 | 91.8 |