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Abstract
The reaction of arylhydrazone (4a,d) with hydroxylamine hydrochloride in acetic acid (or ethanole) in the presence of anhydrous sodium acetate yields amidoxime (5); structure of which was established based on the presence of protons for aminoxime moiety at 0 6.06, 5.6 ppm respectively. Also, IR revealed the absence of a signal for cyano group indicating involvement of the latter in the reaction, aminoximes (5) smoothly cyclized into 2-substituted -5-p-nitrophenyl-l ,2,3-triazole-4amine (6) up on refluxing in DMF in the presence of anhydrous sodium acetate ,to our knowledge this is first reported synthesis of 2-substituted 1,2,3-triazole-4-amines as reported sYnthetic approaches to these compound leads only to I-substituted-l,2,3-triazoleamine. Condensing, the formed triazole(6) with dimethylformaidedimethylAcetal (DMFDMA) results in the fOffi1ation of enamine (7)