Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry and Computational Chemistry


Synthesis of novel azo reagents derived from 4-amin oantipyrine and their applications of enhancement of silver nano particles

Author(s): Aayad Ammar Sayhood *1,2 and Hussain J. Mohammed 1

This study describes synthesis of novel azo dye rea gents, 5-(4-[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihyd ro-1H- pyrazol-4-yl)diazenyl)phenyl]-5-ethylpyrimxline-2,4 ,6(1H,3H,5H)-trione, (L1), 1-(1,5-Dimethyl-3-oxo-2-phenyl-2,3- dihydro-1H-pyrazol-4-yl]-2,3,7,8-tetrahydroxychrome no(5,4,3-cde) chromene-5,10-dione, (L2) , and 4-4-(diazene- 1,2-diyl)bis(1,5-dimethyle-2-phenyle-1H-pyrazol- 3( 2H)-one, (L3) , that prepare from 4-aminoantipyrine with (phenoparpetal, ellagicacid and phenazone) respecti vely as coupling agents and their complexes with Pd (II), Ni(II) and Ag(I) ions. Fixed optimum conditions and effect of solvents were constructed. The Beers law was ob eyed 0.1- 3mg/L. New ligands were used for enhance the proper ties of nano silver by ligand exchange reaction on nanoparticles

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