Quarterly Journal of the Chemical Society of London |
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a-pinene absorption acetic acid acetic anhydride acetone acyl Amax Amer aqueous atom azide band benzene bond bromide Calc calomel catalyst CH₂ Chem chloride chloroform chlorohydrin chromatography cm.¹ complex component compound concentration constant coumarin crystallised decomp decomposition derivative dihydrosantonin dilute dissolved distilled dried electrode eluted ester ethanol ethyl acetate evaporated formation formed Found fraction gave H₂ heated hydrochloric acid hydrochloride hydrolysis infrared spectrum irradiation isolated k₁ ketone kinetic light petroleum b. p. lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mole molecule needles nitrogen obtained ocimene oxidation oxygen perchlorate phenyl polymer potassium potassium hydroxide potassium t-butoxide precipitate prepared proton pyridine reaction reagent reduced reflux requires residue resin room temperature sample santonin sodium hydroxide solution solvent spectra streptolidine streptothricin structure sulphide sulphuric acid Table ultraviolet values washed yellow yield