Ligand design and synthesis. I. 3-Amino-1-(8'-quinolyl)-1-thiapropane and related ligands

Abstract

The chelating properties of 3-amino-I-(8?-quinolyl)-1-thiapropane (2) are discussed. The related ligands 1-(2?-hydroxyphenyl)-6-(8?- quinolyl)-5-thia-2-azapent-1-ene (6), 1-(6?-bromo-2?-hydroxyphenyl)-5- (8?-quinolyl)-5-thia-2-azapent-1-ene (7), 5-(2?-pyridyl)-1-(8?- quinolyl)-1-thia-4-azahex-4-ene (8), and 5-[2?-(6?-acetylpyridyl)]-1- (8?-quinolyl)-1-thia-4-azahex-4-ene (13), and some of their metal complexes are described. The iron(II) sexadentate chelate (17) has been prepared by a metal template synthesis from the amine (2) and glyoxal.