Quarterly Journal of the Chemical Society of London, Part 4, Pages 4141-5276

absorption acetic acid acetone acetylated added alcohol alkaline alumina Amax Amer anhydride aqueous atom band benzene benzyl bond bromide Calc carbon cations Chem chloride chloroform chromatography cm.¹ colour complex compound concentration crystallised cucurbitacin decomp decomposition derivative dilute distilled dried Elution ester ethanol ether ethyl acetate evaporated experimental extracted filtered formation formed Found fraction gave give H₂O heated hydrochloric acid hydrogen hydrogen chloride hydrolysis infrared infrared spectrum iodide isolated isomer ketone light petroleum lithium lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mole molecule needles nitrate nitrogen obtained oxidation perchlorate phenol phosphate potassium potassium hydroxide precipitated prepared proton pyridine pyrolysis reaction reagent reduction refluxed requires residue ring room temperature salt sclareol sodium hydroxide solid solution solvent spectra sulphate sulphuric acid Table ultraviolet values washed yellow yield