Quarterly Journal of the Chemical Society of London, Part 1, Pages 1-1200 |
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Page 377
... fractions collected ) . Nine ultraviolet - absorbing fractions ( A - I , Figure ) were obtained . The adenine in each fraction was determined by hydrolysis with N - hydro- chloric acid at 100 ° , followed by chromatographic separation ...
... fractions collected ) . Nine ultraviolet - absorbing fractions ( A - I , Figure ) were obtained . The adenine in each fraction was determined by hydrolysis with N - hydro- chloric acid at 100 ° , followed by chromatographic separation ...
Page 956
... fraction of certain varieties one or more compounds are seen to be eluted after humulene , the nature of which are unknown.5 The hydro- carbon fraction of the oil of the abnormal variety OW - 153 gave a gas - chromatographic pattern ...
... fraction of certain varieties one or more compounds are seen to be eluted after humulene , the nature of which are unknown.5 The hydro- carbon fraction of the oil of the abnormal variety OW - 153 gave a gas - chromatographic pattern ...
Page 957
... fraction ( 15 % yield ) . Oxidation of the latter fraction with hypobromite gave a small oily residue which failed to crystallize . It follows , therefore , that the sesquiterpene fraction of OW - 153 is principally B - selinene ...
... fraction ( 15 % yield ) . Oxidation of the latter fraction with hypobromite gave a small oily residue which failed to crystallize . It follows , therefore , that the sesquiterpene fraction of OW - 153 is principally B - selinene ...
Contents
Preparation and reactions of some oxoalkyliron complexes | 1 |
Developments in the theory of cationic polymerisation Part IV A general | 16 |
The lowfrequency infrared spectra of some complex halides of zinc cadmium | 26 |
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absorption acetic acid acetic anhydride alkaline aluminium aluminium chloride Amax Amer amine ammonia aqueous aromatic atom band benzene bond bromide Calc carbon CH₂ Chem chloride chloroform chromatography cm.¹ complex compound concentration coupling constants crystallised crystals decomp decomposition derivative dilute dimethyl dimethyl ether distilled dried Elution equation erythroaphins ester ethanol ether ethyl acetate evaporated EXPERIMENTAL extracted filtered fluoride formation Found fraction gave halides heated hydrochloric acid hydrogen hydrolysis infrared infrared spectra iodide K₁ ligand light petroleum lithium aluminium hydride log ɛ m. p. and mixed maltose method mixed m. p. mixture mole molecules nitrogen obtained oxidation oxygen phenyl picrate potassium precipitate prepared proton pyridine quinone reaction recrystallised refluxed requires residue resonance room temperature salt sample sodium hydroxide solution solvent spectrum structure substitution Table ultraviolet values washed yield