الفهرس 
TautomerismOnly 14 pages are availabe for public view
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Abstract
The work presented in this thesis consists of three main parts. PartI Condensation of 2,4-diacarboethoxy-5-hydroxy-3-(4-methoxy phenyl)-5-methylcyclohexanone (1) with equimolar amount of hydrazine hydrate in ethanol and phenylhydrazine in acetic acid afforded ethyl-6-hydroxy-4-(4-methoxyphenyl)- 6-methyl-3-oxo-3,3a,4,5,6,7-hexahydro- 2H-indazole-5-carboxylate (2a) and ethyl-6-hydroxy-4-(4-methoxyphenyl)-6-methyl-3-oxo-2-phenyl-3,3a,4,5,6,7-hexahydro-2H-indazole-5-carboxylate (2b),When compound 1 was subjected to Japp- Klingemann reaction in alkaline medium with diazotized aromatic amines namely (aniline, o-,m-,p-nitroanilines, p-toulidine and p-bromoaniline) gave the hydrazones (4a-g) (Scheme 1) In connection with the above successful reaction, treatment of 4a-g with phenyl hydrazine in acetic acid allows the isolation of arylhydrazono-3-ethylcarboxylate-4-hydroxy-2-(4-methoxyphenyl)-4-methyl-6-(phenyl-hydrazono)cyclohexane derivatives (5a-g and 5`) (Scheme 1).Part III The prepared disperse dyes were applied to polyester and polyamide fabrics. The dye ability and the quantitative colour measurements are measured. where, K/S values at max (in visible region 331-502 nm) were taken as a measure of colour depth. The x, y, z tristimulus values and (L*, a*, b*) for each dyed sample was obtained which illustrates the colour hue. The colour hue of most of these dyes on nylon fabrics is shifted to the greenish direction on the red-green axis as indicated from the negative value of a*.