METHOD FOR OBTAINING COMPOUNDS DERIVED FROM PHOSPHO-IMIDAZOLINES WITH HIGH IMIDAZOLINE RING STABILITY

摘要

The invention relates to a process involving a reaction between derivatives of 2-phenyl-2-imidazolines or compounds thereof substituted at position 1 with 2-aminoethyl or 2-hydroxyethyl groups with phosphates of mono or dihydrogen of mono or bis (3-((-hydroxy-alkylyl)oxy)propane-1,2-di-yl dialkylate) (obtained from reacting epoxidised vegetable oils and phosphoric acid) in the presence of aromatic solvents or mixtures of aromatic compounds having boiling points between 100 and 200°C. The derived phosphoramides and phosphates are strong corrosion inhibitors.