Synthesis and characterization of a new binucleating schiff base macrocycle and its nickel(II) and copper(II) complexes

1988 ◽  
Vol 145 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Mark S. Mashuta ◽  
Thompson N. Doman ◽  
William Pierce ◽  
Robert M. Buchanan
2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Zena G. Alrecabi ◽  
Zainab Amer ◽  
Naeemah Al-Lami

This study including prepared new colored esters containing heterocyclic with high molecular weights. In the first part of work we synthesized azo dyes [1,2] from the reaction p-toluidine with β-naphthol and o-nitro phenol, thin we synthesized Schiff bases [3,4] by the reaction anthranilic acid with benzaldehyde and dimethyl benzaldehyde. The reaction azo dyes (contain OH group) with Schiff base (contain COOH group) these led to produce the new colored esters [A1-A4]. The second part of work was modification the (C=N-) group in esters to heterocyclic compounds by reacting with phenyl iso cyanide to produce new β-lactam [B1-B4] and with anthranilic acid to get new hydroquinazoline [C1-C4]. All these compounds were characterized by physical properties and spectral methods FTIR, 1H-NMR and 13C-NMR.


2021 ◽  
Author(s):  
Saied Menati ◽  
Reza Azadbakht ◽  
Hadi Amiri Rudbari ◽  
Giuseppe Bruno

2018 ◽  
Vol 9 (38) ◽  
pp. 7520-7527 ◽  
Author(s):  
Radmila Faizova ◽  
Sarah White ◽  
Rosario Scopelliti ◽  
Marinella Mazzanti

The tripodal heptadentate Schiff base trensal3− ligand allowed the synthesis and characterization of stable uranyl(v) complexes presenting UO2+⋯K+ or UO2+⋯Fe2+ cation–cation interactions. The presence of Fe2+ bound to the uranyl(v) oxygen leads to increased stability with respect to proton induced disproportionation and to an increased range of stability of the uranyl(v) species with respect both to oxidation and reduction reactions.


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