Journal of the Chemical Society, Part 2The Society., 1959 |
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Results 1-3 of 75
Page 1480
... further crystallization from methanol gave material of m . p . 111 · 5-113.5 ° ( Found : C , 68-7 ; H , 5 · 3 . C17H16O3N2 requires C , 68.9 ; H , 5.5 % ) . After further recrystallizations from cyclohexane the m . p . were 102-106 ...
... further crystallization from methanol gave material of m . p . 111 · 5-113.5 ° ( Found : C , 68-7 ; H , 5 · 3 . C17H16O3N2 requires C , 68.9 ; H , 5.5 % ) . After further recrystallizations from cyclohexane the m . p . were 102-106 ...
Page 1745
... further investigation of this fraction is planned . Our main effort was concentrated on the section between peaks B and C where there were signs of new alkaloids well separated from the known bases . In the large - scale work , a ...
... further investigation of this fraction is planned . Our main effort was concentrated on the section between peaks B and C where there were signs of new alkaloids well separated from the known bases . In the large - scale work , a ...
Page 2130
... further concentrated by partition between 80 % methanol and light petroleum , 16 and the material in the methanol extract was hydrolysed and freed from unsaponifiable material , leaving the concentrate A ( 10-69 g . , 2-3 % of the mixed ...
... further concentrated by partition between 80 % methanol and light petroleum , 16 and the material in the methanol extract was hydrolysed and freed from unsaponifiable material , leaving the concentrate A ( 10-69 g . , 2-3 % of the mixed ...
Contents
Potentially tautomeric pyridines Part II 2 3 and 4Acetamido and benz | 1317 |
ABEL E W and Wilkinson G 1501 | 1324 |
The second rapid step in the nucleophilic substitution of alkyl halides Part I | 1327 |
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absorption acetic acid acetic anhydride acetone added alcohol alumina Amer amine anhydride anhydrous atom band benzene benzyl boiling bond bromide Calc carbon carboxylic CH₂ Chem chloride chloroform chromatography complex compound concentration constant crystals cyclic decomp derivatives dilute dioxan dissolved distilled dried elution ester ethanol ethyl acetate ethylene evaporated filtered formed Found fraction gave give H₂O halides heated hydrochloric acid hydrogen hydrogen chloride hydrolysis hydroxide infrared iodide ionic isolated ketone light petroleum b. p. lithium lithium aluminium hydride m. p. and mixed methyl mixed m. p. mixture mole molecular molecule needles nitrogen obtained oxide phenol phosphate picrate polymer potassium potassium hydroxide precipitate prepared prisms pyridine reaction reduced refluxed requires residue room temperature salt sodium hydroxide solid solvent spectra spectrum structure sulphate sulphuric acid Table tetrachloride values washed yellow yield