Journal of the Chemical SocietyThe Society., 1952 |
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Page 1307
... ethanol ( 10 c.c. ) , and after 15 minutes ' shaking ( methanethiol was evolved ) , the yellow solid was collected . Crystallisation from ethanol gave flavone benzoylhydrazone ( 85 mg . , 47 % ) as microscopic yellow crystals , m . p ...
... ethanol ( 10 c.c. ) , and after 15 minutes ' shaking ( methanethiol was evolved ) , the yellow solid was collected . Crystallisation from ethanol gave flavone benzoylhydrazone ( 85 mg . , 47 % ) as microscopic yellow crystals , m . p ...
Page 1324
... ethanol . The picrate formed needles , m . p . 139–140 ° , from ethanol - ethyl acetate ( Found : C , 57-9 ; H , 5 · 0 . C20H3O , N , C , H , O , N , requires C , 58-0 ; H , 4.8 % ) ; the methiodide had m . p . 137–138 ° ( from ethanol ) ...
... ethanol . The picrate formed needles , m . p . 139–140 ° , from ethanol - ethyl acetate ( Found : C , 57-9 ; H , 5 · 0 . C20H3O , N , C , H , O , N , requires C , 58-0 ; H , 4.8 % ) ; the methiodide had m . p . 137–138 ° ( from ethanol ) ...
Page 2404
... ethanol ; they dissolved slowly in cold 10 % potassium hydroxide , the yellow solution ultimately becoming orange . The 4-0 - Mercaptophenyl - 1 - phenylpyrazolones ( II ) .- A solution of the phenylhydrazone in boiling ethanol was ...
... ethanol ; they dissolved slowly in cold 10 % potassium hydroxide , the yellow solution ultimately becoming orange . The 4-0 - Mercaptophenyl - 1 - phenylpyrazolones ( II ) .- A solution of the phenylhydrazone in boiling ethanol was ...
Contents
244 | 1196 |
219 | 1216 |
The Polymerizability of Methyl atert Butylacrylate | 1220 |
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4-thionflavone 5-triazine absorption acetic anhydride acetone added alcohol alkaline Amer aqueous sodium atom benzene benzylamine boiling bromide Calc carbon CH₂ Chem chloride chloroform colour colourless compound concentrated sulphuric acid condensation cooled crystals D.Sc decomp decomposition derivatives dilute dioxide diphenyl dissolved distilled dried ester ethanol ether ethyl alcohol ethyl nitrate evaporated extracted filtered filtrate flavone fluorination formation formed Found fraction gave give m. p. heated under reflux hexamine hydrochloric acid hydrolysis hydroxyl insoluble iodide ionisation isolated ketone lactone light petroleum b. p. m. p. and mixed methiodide method methyl minutes mixed m. p. molecule needles niobium nitrate nitrobenzene obtained olefin oxidation picrate potassium hydroxide precipitate prepared prisms pyridine requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent solvolysis sorbitol sulphate sulphuric acid tetrabenzyl pyrophosphate values washed yellow yield