SYNTHESIS AND AMPHIPHILIC AND SPECTRAL CHARACTERS OF N-ALKYL-8-HYDROXY-2-QUINOLINECARBOXAMIDES

A series of amphiphilic derivatives of 8-hydroxyquinoline, N-alkyl-8-h ydroxy-2-quinoline carboxamides (alkyl: dodecyl, tetradecyl, hexadecyl and octadecyl), were synthesized and characterized by IR, H-1 NMR and UV-visible spectroscopy. The positions of (1)L(a) and B-1(b) 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 pur e water and salt solution.