Quarterly Journal of the Chemical Society of London, Part 1, Pages 1-1200

absorption acetic acid acetic anhydride alkaline aluminium aluminium chloride 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 hydroxide infrared infrared spectra iodide k₂ ligand light petroleum lithium aluminium hydride 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 ring room temperature salt sample sodium sodium hydroxide solution solvent spectrum structure substitution Table ultraviolet values washed yield