Quarterly Journal of the Chemical Society of London |
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Page 3063
... absorption spectroscopy with the product obtained as described above from cholestadienone ( I ) . We thank Dr. J. E. ... Absorption of Normal and 180 - Labelled NN - Dimethylbenzamide . By S. PINCHAS , DAVID SAMUEL , and MARTA WEISS ...
... absorption spectroscopy with the product obtained as described above from cholestadienone ( I ) . We thank Dr. J. E. ... Absorption of Normal and 180 - Labelled NN - Dimethylbenzamide . By S. PINCHAS , DAVID SAMUEL , and MARTA WEISS ...
Page 3066
... Absorption . - NN - Dimethylbenzamide , when dissolved in propan - 2 - ol , showed ( above 2200 Å ) a single maximum of absorption at 2260 Å with a log ɛ of 3.83 ( in ethanol , 3-87 ) . The 180 - labelled compound under identical ...
... Absorption . - NN - Dimethylbenzamide , when dissolved in propan - 2 - ol , showed ( above 2200 Å ) a single maximum of absorption at 2260 Å with a log ɛ of 3.83 ( in ethanol , 3-87 ) . The 180 - labelled compound under identical ...
Page 4052
... absorption is attributable solely to the ionic form of the 3 - hydroxypyridine nucleus . Consequently , the observation of similar absorption maxima of products from pyridoxal phosphate and cysteine does not represent definite proof of ...
... absorption is attributable solely to the ionic form of the 3 - hydroxypyridine nucleus . Consequently , the observation of similar absorption maxima of products from pyridoxal phosphate and cysteine does not represent definite proof of ...
Contents
3082 | 2595 |
Interaction between selenium oxychloride and the trichlorides of boron | 2600 |
NO PAGE | 2601 |
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Common terms and phrases
absorption acetic acid acetic anhydride acetone acetyl added alcohol alkali alumina Amer aqueous ation atom band benzene beryllium boiling bond bromide Calc carbon tetrachloride carbonyl Chem chloride chloroform chromatography cm.¹ colourless complexes compound concentrated cooled crystallised crystals cyclohexanone decomp decomposition derivative diethyl dilute dioxan dissolved distilled elution ester ethanol ethyl acetate evaporated EXPERIMENTAL extracted with ether filtered filtrate formation Found fraction gave heated hydride hydrochloric acid hydrolysis infrared infrared spectrum iodide isolated isomers isorotenolone ketone light petroleum b. p. lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mole molecule needles nitrate nitric oxide nitrogen obtained peroxide phenyl phosphate potassium precipitate prepared pyridine quinazoline radicals reaction refluxed requires residue room temperature rotenone sample sodium hydroxide solid solution solvent spectra structure sulphate sulphuric acid Table ultraviolet values yellow yield