Synthesis and Amphiphilic and Spectral Characters of N-Alkyl-8-hydroxy-2-quinolinecarboxamides

Abstract
A series of amphiphilic derivatives of 8-hydroxyquinoline, N-alkyl-8-hydroxy-2-quinoline carboxamides (alkyl: dodecyl, tetradecyl, hexadecyl and octadecyl). were synthesized and characterized by IR, 1H NMR and UV-visible spectroscopy. The positions of 1La and 1Bb bands of the derivatives were investigated as a function of solvent. Apparent concentration effect and acid-base equilibrium in polar solvents were observed. These amphiphilic molecules can form stable monolayer on pure water and salt solution.