Quarterly Journal of the Chemical Society of London, Part 5, Pages 5005-6079 |
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Page 5129
... chloroform- methanol ( 1 · 5 1. ) . The acetone extract was evaporated to dryness and the residue was dissolved in the chloroform - methanol extract which was washed with water ( 150 ml . ) . The organic phase was evaporated to dryness ...
... chloroform- methanol ( 1 · 5 1. ) . The acetone extract was evaporated to dryness and the residue was dissolved in the chloroform - methanol extract which was washed with water ( 150 ml . ) . The organic phase was evaporated to dryness ...
Page 5261
... chloroform ( 1 : 1 ; 100 ml . ) and chloroform ( 400 ml . ) gave a mixture ( 0-09 g . ) , which on crystallisation from methanol afforded 7 - hydroxy - 3,4 - benzocoumarin ( X ) ( 0-01 g . ) . Evaporation of the mother - liquor to ...
... chloroform ( 1 : 1 ; 100 ml . ) and chloroform ( 400 ml . ) gave a mixture ( 0-09 g . ) , which on crystallisation from methanol afforded 7 - hydroxy - 3,4 - benzocoumarin ( X ) ( 0-01 g . ) . Evaporation of the mother - liquor to ...
Page 5452
... chloroform , nitromethane , or pyridine , or in mixtures thereof . The iodide Co py2l2 was exceptional in that , although the chloroform and chloroform - pyridine solutions used in the equilibrium measurements were non - conducting , a ...
... chloroform , nitromethane , or pyridine , or in mixtures thereof . The iodide Co py2l2 was exceptional in that , although the chloroform and chloroform - pyridine solutions used in the equilibrium measurements were non - conducting , a ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added alcohol alkaline alumina Amax Amer anhydride anion aromatic atoms bands benzene benzyl boiling bond bromide Calc carbonate carboxylic Chem chloride chloroform chromatography cm.¹ complexes compound concentration constants crystallised crystals decomp decomposition derivative dilute dioxan distilled dried electron Elution ester ethanol ethyl acetate ethylene evaporated extracted filtered formed Found fraction gave H₂O heated hydration hydrochloric acid hydrogen hydrolysis infrared infrared spectrum iodide iodine iodine pentafluoride isomer isomeric ketone light petroleum lithium aluminium hydride m. p. and mixed methyl ether mixed m. p. mixture mole molecule needles nitrate nitric oxide nitrogen observed obtained ozonolysis peroxide phenyl potassium prepared proton pyridine radicals reaction reflux requires residue resonance room temperature salt sodium hydroxide sodium methoxide solid solution solvent spectra structure substituent sulphate Table ultraviolet values Vmax washed yield