Journal of the Chemical SocietyThe Society., 1964 |
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Results 1-3 of 72
Page 3581
... dried ( Na2SO ) , and evaporated , leaving a crystalline substance ( 11.2 g . , 97 % ) , which was recrystallised from ether , to give decahydro - 5,10 - dihydroxynaphthalen - 2 - one ( X ) , prisms , m . p . 90-91 ° ( Found : C , 64-8 ...
... dried ( Na2SO ) , and evaporated , leaving a crystalline substance ( 11.2 g . , 97 % ) , which was recrystallised from ether , to give decahydro - 5,10 - dihydroxynaphthalen - 2 - one ( X ) , prisms , m . p . 90-91 ° ( Found : C , 64-8 ...
Page 3820
... dried over anhydrous magnesium sulphate . For paper - chromato- graphic analysis Whatman's DE - 20 paper was used with 25 % acetic acid in methanol as solvent ; RF values refer to this system . Humulinic acid A , 16a m . p . 92-93 ° , R ...
... dried over anhydrous magnesium sulphate . For paper - chromato- graphic analysis Whatman's DE - 20 paper was used with 25 % acetic acid in methanol as solvent ; RF values refer to this system . Humulinic acid A , 16a m . p . 92-93 ° , R ...
Page 4441
... dried ( BaO ) . Methylamine . A stream of nitrogen was passed through an aqueous solution of methylamine ( 25 % w / v ) . The gases were dried ( BaO ) and methylamine collected in a trap cooled in solid CO2 . Dimethyl- and trimethyl ...
... dried ( BaO ) . Methylamine . A stream of nitrogen was passed through an aqueous solution of methylamine ( 25 % w / v ) . The gases were dried ( BaO ) and methylamine collected in a trap cooled in solid CO2 . Dimethyl- and trimethyl ...
Contents
4028 | 3507 |
Nucleophilic reactivity Part V The reaction between amines and ethyl meth | 3513 |
Molecular polarisability Dipole moments molar Kerr constants and apparent | 3523 |
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Common terms and phrases
absorption acetic acid acetic anhydride acetone acetoxylation acetyl added alcohol alkaline alumina aluminium Amer amine atoms band benzene benzyl bond bromide Calc carbon carbonyl CH₂ chabazite Chem chloride chloroform chromatography cm.¹ compounds concentration crystals decomp derivatives diethyl diluted dimethylformamide diol dissolved distilled dried ester ethanol ethyl acetate evaporated EXPERIMENTAL extracted with ether filtrate formation Found fraction gave give heated hydrochloric acid hydrochloride hydrogen hydrolysis hydroxyl infrared iodide isomers K₁ ketone kinetic light petroleum lithium lithium aluminium hydride m. p. and mixed mixed m. p. mixture mole molecules needles nitrate nitric acid nitrogen o-xylene obtained optical oxide oxygen petroleum b. p. phenol picrate potassium precipitated prepared proton pyridine rate constants reaction recrystallised refluxed requires residue room temperature salt sodium hydroxide solvent spectra spectrum stirred structure substitution sulphuric acid Table values washed yield