Journal of the Chemical Society, Pages 1-1026

4-dione absorption acetic acid acetic anhydride acetone acetyl acidified activity added alcohol alkaline Amer amine ammonia amylose anhydride atom benzene boiling bromide bromine trifluoride Calc carbon dioxide carbon tetrachloride catalyst Chem chloride chloroform colour colourless complex compound containing cooling copper corresponding crystallised crystals cyclisation D.Sc decomp derivatives diazomethane dilute dioxan dissolved distilled disulphide dried electron ester ethanol ethyl acetate ethylamine evaporated filtered filtrate formed Found fraction gave give heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone light petroleum b. p. liquid m. p. and mixed metals method methyl minutes mixed m. p. mixture molecule needles nitrate obtained oxidation peroxide potassium precipitate prepared prisms pyridine Q-enzyme reaction reagent reduced requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent sulphate sulphide sulphuric acid washed yellow yield