Journal of the Chemical SocietyThe Society., 1964 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Page 317
... room temperature ; the mixture was condensed on to the halide and warmed again to room temperature ; the excess of volatile compounds was pumped off ; the red crystals remain- ing had a dissociation pressure of less than 1 mm . , melted ...
... room temperature ; the mixture was condensed on to the halide and warmed again to room temperature ; the excess of volatile compounds was pumped off ; the red crystals remain- ing had a dissociation pressure of less than 1 mm . , melted ...
Page 576
... room temperature for 2 hr . and the volatile products of reaction were then fractionated in vacuo to yield 1,1,2,2 - tetrafluoroethane ( 0.24 g . , 2.32 mmoles , 94 % ) ( Found : M , 102. Calc . for C2H , F : M , 102 ) . ( ii ) 2 ...
... room temperature for 2 hr . and the volatile products of reaction were then fractionated in vacuo to yield 1,1,2,2 - tetrafluoroethane ( 0.24 g . , 2.32 mmoles , 94 % ) ( Found : M , 102. Calc . for C2H , F : M , 102 ) . ( ii ) 2 ...
Page 590
... room temperature for 24 hr . After dilution with aqueous sodium hydrogen carbonate , the steroids were extracted with methylene chloride - ether ( 1 : 3 ) . The extract was washed , dried , and concentrated to yield a syrup ( 55 mg ...
... room temperature for 24 hr . After dilution with aqueous sodium hydrogen carbonate , the steroids were extracted with methylene chloride - ether ( 1 : 3 ) . The extract was washed , dried , and concentrated to yield a syrup ( 55 mg ...
Contents
NO PAGE | 1 |
Nucleophilic reactivity Part IV Competing bimolecular substitution | 5 |
The biosynthesis of fungal metabolites Part I Two different pathways | 16 |
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absorption acetic acid alkaline aluminium chloride Amer amine anhydride aphins aqueous aromatic atoms band benzene bond bromide Calc carbon Chem chloride chloroform chromatography cm.¹ complex compound concentration coupling constants crystallised crystals decomp decomposition derivatives diazomethane dilute dimethyl dimethyl ether dioxan dried Elution equation erythroaphin-fb erythroaphins ester ethanol ether ethyl ethyl acetate evaporated EXPERIMENTAL extracted formation Found fraction gave halides hydrochloric acid hydrogen hydrogen chloride hydrolysis infrared infrared spectra iodide irradiated isomer k₂ ligand light petroleum m. p. and mixed maltose mixed m. p. mixture mole molecule mµ log ɛ nitrogen obtained oxidation oxygen phenyl piperidine potassium precipitate prepared protoaphin proton pyridine quinone reaction recrystallised refluxed requires residue room temperature sample similar sodium hydroxide soluble solution solvent spectrum structure substitution Table ultraviolet values washed yellow yield