Nghiên cứu tổng hợp và cấu tạo một số 4,5-đinitro pyrazol chứa dị vòng O, S.

Abstract

By condensation of furfural or thiophen-2-carboxaldehyde with aryl methyl ketone have been synthesized a,b-unstaturated ketones. These ketones can be reacted with arylhidrazines to form heterocylic 4,5-dihydropyrazoles. These products was confirm by IR, ¹H-NMR and ¹³C-NMR.         The charge densities on the carbon atoms of the main molecular skelete of  the substituted 4,5-dihydropyrazoles have been computed using chemical quantum AM1.