Title of article :
Synthesis of New Pyrazole Derivatives Using Vinamidinium Salts
Author/Authors :
mehranpour, Abdolmohammad department of Chemistry - Faculty of Sciences - Persian Gulf university , Hashemnia, Sedigheh department of Chemistry - Faculty of Sciences - Persian Gulf university
Abstract :
Novel pyrazole derivatives 2-7 are synthesized by the reaction of 2-substituted 1,3-bis(dimethylamino)-trimethinium salts with phenyl hydrazine in acetonitrile as the solvent. This method has some advantages of high yields (78-85%), simplicity of the process and easy of control. The ultraviolet spectral behavior of the synthesized compounds is examined in CDCl3 and their structures were characterized by elemental analysis, FTIR, 1H and 13C NMR and Mass spectra.
Keywords :
Trimethinium salts , Pyrazole derivatives , Phenyl hydrazine
Journal title :
Organic Chemistry Research
