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Seven new Schiff bases, which are 4,4,4-trifluo-ro-1-(2-thienyl)-1-butanone-3-Z, Z =-thioseraicarbazone (a); -thiocarbohydrazone (b),-benzoic hydrazone (c), -( o-hydroxyphenyl) imine (d) ,-nicotinic hydrazone (e),-salicylic hydrazone (f), and -(p-fluoro-m-chlorophenyl) imine (g), have been synthesized by reaction of 4, 4, 4-trifluoro-1-(2-thienyl)-1,3-butanedione (TFTBD) with corresponding hy-drazides or anilines, acetic acid or p-toluence sulfonic acid as catalyst, and characterized by Elemental analysis, IR, UV-Vis,1H NMR and MS. The MS spectra confirmed that the -C3=O condensed with primary amino group. Tauto-merism of the compounds is discussed.
Seven new Schiff bases, which are 4,4,4-trifluo-ro-1- (2-thienyl) -1-butanone-3-Z, Z = -thioseraicarbazone (a); -thiocarbohydrazone (b) (c) - (o-hydroxyphenyl) imine (d), -nicotinic hydrazone (e), - salicylic hydrazone (f), and - of 4, 4-trifluoro-1- (2-thienyl) -1,3-butanedione (TFTBD) with corresponding hy- drazides or anilines, acetic acid or p- toluence sulfonic acid as catalyst, and characterized by Elemental analysis, IR, UV-Vis, 1H NMR and MS. The MS spectra confirmed that the -C3 = O condensed with primary amino group. Tauto-merism of the compounds is discussed.