PREPARATION AND CHARACTERIZATION OF NEW AMINO-SUBSTITUTED CROWNS AND PODANDS


KILIC Z., WEBER E., GUNDUZ N., KILIC E., NAZIR H., HOKELEK T., ...Daha Fazla

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, cilt.47, sa.4, ss.547-552, 1992 (SCI-Expanded) identifier identifier

Özet

A number of macrocyclic (1b-3b) and linear oligoether compounds (4b-8b) with 2,2'-methylenebis(4-aminophenol) or 2-aminophenol characteristic building blocks have been synthesized by reduction of the corresponding nitro derivatives with Pd-C/hydrazine hydrate. The pKa' values of the new compounds have been determined by potentiometric titration. These and the observed spectroscopic data are discussed and compared with related compounds. A crystalline 1:1 complex of the diamino crown 3b with NaSCN has also been prepared and characterized.