cover image: Journal of the Indian Chemical Society  May  1935

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20.500.12592/jtr6z4

Journal of the Indian Chemical Society May 1935

1935

The effect of substituents in the phenol residue and in the benzene residue of the azophenols on the yield of the corresponding aldehydes has also been thoroughly investigated. [...] The reactivity of the hydroxyazcompounds with an alkyl radical (Me) in the ortho-position to the OH group appears to be more or less diminished; and the reactivity is still further diminished by the presence of one alkyl radical in the ortho-position_ and another alkyl radical in the meta-position as in the case of benzeneazothymol and benzeneazocarvacrol. [...] The entrance of a nitro group into the orthor meta-position to the azo-group or the presence of a Cl in the molecule has little or no effect on the depth ofSTUDIES ON AZO-ALDEHYDES 295 the colour the corresponding compounds being all yellow. [...] On the basis of this assumption the mode of various reactions of the tautomeric compounds of the ketimine-enamine type may be easily considered and an attempt may be made to find out a solution of the problems involved although the inherent defect of the chemical method of handling equilibrium mixtures cannot but be recognised. [...] 1893 ii 47 105) might be due to the driving back by hydrion (the presence of hydrochloric acid increasing the concentration of hydrion) of the dissociation of the mobile hydrogen of the tautomeric compound in question with resulting increase in the proportion of the ketimine form (1).
technology medicine science
Pages
80
Published in
India
SARF Document ID
sarf.120026
Segment Pages Author Actions
Frontmatter
i-iv J.C. Ghosh, A.C. Sircar view
Synthesis in the Pyridine Series
289-292 Umaprasanna Basu view
Studies on Azo-aldehydes
293-299 Rajendra Sen, B.N. Banerjee view
On Ketimine-Enamine Compounds
299-308 Umaprasanna Basu view
Dimercaptothiobiazole as an Analytical Reagent
308-317 Priyadaranjan Ray, Jagannath Gupta view
The Alkylation of Acetoacetic Ester by Toluenesulphonic Esters
318-321 C. Nair, D.H. Peacock view
Investigations on the Adsorptive Property of Silica Gel. Part I. Chemical Activity of Residual Water in Activated Silica Gel
322-325 M.R. Rao, Basrur Rao view
Investigations on the Adsorptive Property of Silica Gel. Part II. Adsorptive Properties of Silica Gel containing Residual Hydrogen Chloride
326-330 M.R. Rao view
Investigations on the Adsorptive Property of Silica. Gel. Part III. Volume Changes produced on Displacement of Adsorbed Liquids in Silica Gel by Water
331-335 M.R. Rao view
Investigation on the Adsorptive Property of Silica Gel. Part IV. Liberation of Air from Silica Gel Capillaries during Adsorption of Liquid
336-339 M.R. Rao view
Investigations on the Adsorptive Property of Silica Gel. Part V. The Specific Gravity of Silica Gel under Various Liquids
340-342 M.R. Rao view
Halogenation. Part X. Iodination of Xylenes and Mono-iodoxylenes
343-344 Phuldeo Varma, K.S. Raman view
Selective Adsorption and its Significance. Part I. Nature of Selective Adsorption
345-355 M.R. Rao view
Backmatter
i-vii unknown view

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