56594-79-7Relevant academic research and scientific papers
The Reaction of Some N-(Nitrophenyl)azoles with Alkali: Preparation of the Corresponding Azoxybenzenes. X-Ray Structure of 2,2'-Bis(1'',2'',4''-triazol-1''-yl)azoxybenzene
Mackay, Maureen F.,Trantino, Giuseppe J.,Wilshire, John F. K.
, p. 417 - 425 (2007/10/02)
The reactions of some representative N-(nitrophenyl)azoles with boiling aqueous ethanolic potassium hydroxide solution gave the corresponding bis(azolyl)azoxybenzenes.It is deduced that, in these reactions, the N-attached azolyl groups concerned are acting as weak electron-withdrawing groups.The structure of 2,2'-bis(1'',2'',4''-triazol-1''-yl)azoxybenzene was determined in the solid state by X-ray crystallography.The monoclinic crystals belong to the space group P21/c with a 8.815(1), b 7.863(1), c 11.836(1) Angstroem, β 109.96(1) deg and Z 2.The structure was refined to an R index of 0.041 for 1172 observed terms.The midpoint of the exocyclic N=N bond lies on an inversion centre so that the azoxy oxygen is statistically distributed between two sites.The benzene ring atoms are coplanar to within experimental error, as are the triazole ring atoms, and the dihedral angle between the perpendiculars to the two rings is 35.3(3) deg.
SYNTHESES AND PROPERTIES OF SOME DERIVATIVES OF N--NAPHTHALIMIDE
Jankowski, Zdzislaw,Stolarski, Roland
, p. 555 - 564 (2007/10/02)
Syntheses of N--naphthalimide and N--naphthalimide derivatives, unreported so far in the literature have been worked out, and the products are characterized.The usefulness of some of them as optical brightening agents has been established from their fluorescence spectra.The phenomenon of an intramolecular energy transfer from the benzotriazole to naphthalimide ring systems has been observed for the derivatives of N--naphthalimide.
