cover image: Journal of the Indian Chemical Society  February  1938

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20.500.12592/4jtkgg

Journal of the Indian Chemical Society February 1938

1938

It is generally known that a substituent in the benzene ring (in the meta position to the group participating in the cyclisation) always activates the Mara-postion in preference to the ortho; but in some particular cases the cyclisation has actually been shown to take place in the ortho-position (Spath and Kruta Monatsh. [...] The paper describes the preparation and properties of the complex oxalates of gallium with oxalates of sodium potassium ammonium and strychnine and also the resolution of the potassium and ammonium salts into their optical isDmers by means of the strychnine ; preparation of their d-components has been described. [...] 1927 60 399) was able to prepare the d-variety of only the ammonium salt of the corresponding complex aluminium salt but we have prepared the d-varieties of both the ammonium and potassium salt of the corresponding gallium-oxalato-acid. [...] An attempt to separate them by fractional crystallisation from the solution in warm water was unsuccessful as the salt racemises quickly in it They were however separated by repeated fractional extraction with cold water when owing to differences in solubility of the two isomers in it the d-variety which was more insoluble was obtained in the residue the 1-component passing in the solution. [...] Dextro-varieties of the potassium and ammonium salts were obtained by the double decomposition of the strychnine salt with the solutions of the corresponding iodides.
technology medicine science
Pages
48
Published in
India
SARF Document ID
sarf.120026
Segment Pages Author Actions
Frontmatter
i-iv S.S. Joshi, A.C. Sircar view
Synthesis in the Alloxazine Isoalloxazine (Flavin) and Lumazine Groups. Part II. Synthesis of Some Amino Derivatives of Alloxazine and Thioalloxazine
77-82 K. Ganapati view
New Compounds of Gallium. Part III. Preparation and Resolution of Complex Oxalato Compounds of Gallium Into Optical Isomers
83-86 Panchanan. Neogi, Nihar Dutt view
Quercetagetin From the Flowers of Tagetes Erecta
87-88 Harbhajan Mahal view
Quinoline Derivatives. Part IV
89-94 Tejendra Ghosh view
Chemical Examination of the Seeds of Solanum Xanthocarpum (Schard and Wendle). Part II. The Constituents
95-100 Mahadeo Gupta, Sikhibhusan Dutt view
Studies On the Enzymes of the Seeds of Butea Frondosa. Part I. Proteolytic Enzyme
101-106 N.R. Chatterjee, S. Ghosh, R.N. Chopra view
Studies On the Enzymes of the Seeds of Butea Frondosa. Part II. Lipolytic Enzyme
107-109 N.R. Chatterjee, S. Ghosh, R.N. Chopra view
Chemical Examination of Mango “ Chep” the Exudation of the Fruit of Mangifera Indica
110-117 Shiam Vasistha, Salimuzzaman Siddiqui view
A Note On the Action of the Chlorine-Bleach On the Resin Constituents of Lac
118-120 M.N. Murty view

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