TY - JOUR ID - 54359 TI - Synthesis of New Pyrazole Derivatives Using Vinamidinium Salts JO - Organic Chemistry Research JA - ORG.CHEM LA - en SN - AU - Mehranpour, Abdolmohammad AU - Hashemnia, Sedigheh AU - Abbasi, S. AD - Chemistry, Faculty of Sciences, Persian Gulf university, Bushehr, Iran AD - Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr,Iran AD - Persian Gulf University Y1 - 2017 PY - 2017 VL - 3 IS - 2 SP - 187 EP - 190 KW - Trimethinium salts KW - Pyrazole derivatives KW - Phenyl hydrazine DO - 10.22036/org.chem.2017.83427.1089 N2 - 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. UR - https://www.orgchemres.org/article_54359.html L1 - https://www.orgchemres.org/article_54359_e6f120a023d118229d607a51cd68b0c3.pdf ER -