Journal of the Chemical Society, Part 4The Society., 1949 |
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Page 2496
... acetic acid ( 1 c.c. ) for 1 hour , a crystalline precipitate formed . This material was purified by dissolution in alkali and reprecipitation by addition of glacial acetic acid . A final recrystallisation from water gave colourless ...
... acetic acid ( 1 c.c. ) for 1 hour , a crystalline precipitate formed . This material was purified by dissolution in alkali and reprecipitation by addition of glacial acetic acid . A final recrystallisation from water gave colourless ...
Page 3175
... acid with acetic acid and the precipitated amino - acid was collected and dissolved in dilute aqueous ammonia . The filtered alkaline solution was made just acid with acetic acid , and crystallisation of the yellow solid from alcohol ...
... acid with acetic acid and the precipitated amino - acid was collected and dissolved in dilute aqueous ammonia . The filtered alkaline solution was made just acid with acetic acid , and crystallisation of the yellow solid from alcohol ...
Page 3181
... acid and ice were added and the nitrobenzene was removed with steam . The residual solution was extracted with ether . Evaporation gave 5 - methoxyindan - 1 - one - 3 - acetic acid ( 2.6 g . ) , which separated from alcohol in needles ...
... acid and ice were added and the nitrobenzene was removed with steam . The residual solution was extracted with ether . Evaporation gave 5 - methoxyindan - 1 - one - 3 - acetic acid ( 2.6 g . ) , which separated from alcohol in needles ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added alcohol alkaline aluminium chloride aluminium iodide Amer amine ammonia aqueous sodium atom benzaldehyde benzene boiling bond bromide bromine trifluoride Calc carbon CHâ‚‚ Chem chloroform colourless needles compound concentrated condensation containing cooled crystallised crystals D.Sc decomp decomposition derivatives diazotised dilute dioxan dissolved distilled dried ester ethanol ethyl alcohol extracted with ether filtered filtrate formation formed Found fraction gave Grignard reagent halide heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide iodine ions isolated ketone light petroleum b. p. liquid method methyl methyl iodide minutes mixture molecule nitrate nitrogen obtained oxidation phenol picrate potassium precipitate prepared prisms pyridine reaction reagent recrystallised from ethanol reduced pressure removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent sulphate sulphone sulphuric acid synthesis Table tube values washed yield