95260-59-6Relevant academic research and scientific papers
1,4,5,8-TETRA-AZAPHENANTHRENE COMPLEXES OF COPPER(I) AND SILVER(I)
Nasielski, J.,Nasielski-Hinkens, R.,Heilporn, S.,Rypens, C.,Declercq, J. P.
, p. 983 - 992 (2007/10/02)
Cu(I) and Ag(I) complexes of 1,4,5,8-tetra-azaphenanthrene (TAP) and of two its methylated derivatives (3,6-dimethyl- and 2,3,6,7-tetramethyl-) have been made and characterized.Their 1HNMR spectra are discussed.The structure of the complex Ag(TAP)2(NO3), as determined by X-Ray crystallography, is that of strongly folded and twisted square planar arrangement of the chelating ligands around the silver atom; the four Ag-N bonds are not equal: they are shorter (2.36 Angstroem) in one pair of trans bonds than in the other (2.56 Angstroem). 3,6-Dimethyl-1,4,5,8-tetra-azaphenanthrene (3,6dmTAP), a new TAP derivative, has been synthesized starting from 2-hydroxy-3-methylquinoxaline which was nitrated, then treated with POCl3, the resulting 2-chloro-3-methyl-6-nitroquinoxaline reacted with hydrazine and the hydrazino group oxidized to give 3-methyl-6-nitroquinoxaline.This was aminated with hydroxylamine, reduced to the diamine and finally condensed with glyoxal to give 2,6-dimethyl- and 3,6-dimethyl-1,4,5,8-tetra-azaphenanthrene.
