Quarterly Journal of the Chemical Society of London, Pages 3324-4156 |
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Page 3067
... isolation of the picrate gave a mixture from which only the picrate of ( III ) , m . p . 203-204 ° , was isolated in a pure state . The marked influence of the nature of the secondary amine on the course of Mannich reactions involving ...
... isolation of the picrate gave a mixture from which only the picrate of ( III ) , m . p . 203-204 ° , was isolated in a pure state . The marked influence of the nature of the secondary amine on the course of Mannich reactions involving ...
Page 3437
... isolated . The methyl ester monoacetate of one has been identified as methyl 3a - acetoxylanosta- 8 : 24 - dien - 21 - oate ( IV ; R OAc , R ' H ) . The other , which occurs along = = with its dehydro - derivative , is a dioxo - acid ...
... isolated . The methyl ester monoacetate of one has been identified as methyl 3a - acetoxylanosta- 8 : 24 - dien - 21 - oate ( IV ; R OAc , R ' H ) . The other , which occurs along = = with its dehydro - derivative , is a dioxo - acid ...
Page 3536
... isolated under these conditions could not be completely freed from dextran , such preparations contained only one - tenth of the dextran present in the dextransucrase isolated from cultures containing sucrose alone.1 The enzyme was isolated ...
... isolated under these conditions could not be completely freed from dextran , such preparations contained only one - tenth of the dextran present in the dextransucrase isolated from cultures containing sucrose alone.1 The enzyme was isolated ...
Contents
ii | 2842 |
Catalytic hydrogenation | 2845 |
Garden J F and Thomson R H | 2851 |
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Common terms and phrases
4-triazine absorption acetic acid acetic anhydride acetone acidified added alcohol alkali alkyl Amer amine aqueous sodium atom band benzene benzyl boiling bromine Calc carbonate carbonyl Chem chloroform chromatography CO₂H colourless compound concentration containing cooled crystallised cyclisation decomp derivative diethyl dilute dioxan dioxide diphenyl dissolved distilled dried eluted ester ethanol ethyl acetate evaporated filtered filtrate fluorene formation formed Found fraction gave give H₂O heated hydrochloric acid hydrogen chloride hydrolysis infrared iodide isatin isolated ketone lactone light petroleum b. p. lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mole needles nitric acid nitrogen obtained oxidation perchloric phenyl potassium hydroxide precipitate prepared prisms pyridine reaction reagent reduced refluxed requires residue room temperature salt separated sodium hydroxide solid solution solvent spectra structure sulphuric acid Table titration washed yellow yield