Journal of the Chemical SocietyThe Society., 1949 |
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Page 105
... refluxed for 2 hours . The mixture was worked up by dilution with benzene , extraction with 2N - hydrochloric acid , and isolation of the monohydrochloride which was subsequently converted into the base . This crystallised from alcohol ...
... refluxed for 2 hours . The mixture was worked up by dilution with benzene , extraction with 2N - hydrochloric acid , and isolation of the monohydrochloride which was subsequently converted into the base . This crystallised from alcohol ...
Page 182
... refluxed for 3 hours . The cooled solution was acidified with dilute hydrochloric acid and evaporated on the steam - bath . The crystalline hydantoin was collected , washed with a little cold water , and air dried ; yield 1-4 g . ( 68 ...
... refluxed for 3 hours . The cooled solution was acidified with dilute hydrochloric acid and evaporated on the steam - bath . The crystalline hydantoin was collected , washed with a little cold water , and air dried ; yield 1-4 g . ( 68 ...
Page 306
... refluxed ( oil - bath ) for hour , and the cooled mixture was poured on ice ( 70 g . ) , giving rise to a yellow flocculent precipitate mixed with a small amount of a brown oil . Sufficient saturated aqueous sodium hydrogen sulphite to ...
... refluxed ( oil - bath ) for hour , and the cooled mixture was poured on ice ( 70 g . ) , giving rise to a yellow flocculent precipitate mixed with a small amount of a brown oil . Sufficient saturated aqueous sodium hydrogen sulphite to ...
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Common terms and phrases
absorption acetic acid acetic anhydride acetone added addition alkaline aluminium aluminium chloride Amer ammonia anhydride atom benzene boiling bond bromide Calc carbon catalyst CHâ‚‚ Chem chloroform colourless needles compound concentrated condensation cooled crystallised crystals curve cyanide D.Sc decomp decomposition derivatives dilute dissolved distilled disulphide dried ester ethyl acetate ethyl alcohol ethylene evaporated extracted with ether filtered filtrate formed Found fraction gave give m. p. heated hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone kojic acid light petroleum b. p. m. p. and mixed methanol method mixed m. p. mixture molecule obtained oxide phenyl picrate potassium hydroxide precipitated prepared prisms pyridine reaction reagent reduced pressure refluxed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure sulphate sulphide sulphone sulphuric acid thionyl chloride washed yellow yield