Journal of the Chemical Society, Part 3Chemical Society., 1949 |
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Page 1761
... cooled , the excess of barium hydroxide was removed by carbon dioxide , and the precipitated barium carbonate filtered off . The filtrate was then evaporated to dryness under reduced pressure , and the residue ( 1.81 g . ) was extracted ...
... cooled , the excess of barium hydroxide was removed by carbon dioxide , and the precipitated barium carbonate filtered off . The filtrate was then evaporated to dryness under reduced pressure , and the residue ( 1.81 g . ) was extracted ...
Page 2033
... cooled in a carbon dioxide - alcohol bath . vigorous stream of acetylene ( ca. 3 1./min . ) was bubbled into the stirred liquid , and lithium ( 30 g . ) , cut into small pieces , was added during 15 minutes . A vigorous evolution of ...
... cooled in a carbon dioxide - alcohol bath . vigorous stream of acetylene ( ca. 3 1./min . ) was bubbled into the stirred liquid , and lithium ( 30 g . ) , cut into small pieces , was added during 15 minutes . A vigorous evolution of ...
Page 2061
... cooled with ice - water , and the yellow solution heated under reflux on the steam - bath for 20 minutes , cooled , and treated with dilute hydrochloric acid . The ethereal layer was separated , washed with aqueous sodium hydrogen ...
... cooled with ice - water , and the yellow solution heated under reflux on the steam - bath for 20 minutes , cooled , and treated with dilute hydrochloric acid . The ethereal layer was separated , washed with aqueous sodium hydrogen ...
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Common terms and phrases
acetic acid acetic anhydride acetone acetyl added admixture alkaline alkyl aluminium chloride Amer ammonia aqueous solution atoms barium benzene boiling bromine Calc carbinol carbon catalyst Chem Chim chloroform colourless needles compound concentrated condensation cooled crystals cyclohexene D.Sc decomp derivatives dilute dioxan dissolved distilled dithizone dried equiv ester ethanol ethyl acetate ethyl alcohol evaporated EXPERIMENTAL filtered filtrate formed Found fraction gave give heated under reflux hydrocarbon hydrochloric acid hydrogen chloride hydrolysis iodide ions isolated ketone Light absorption light petroleum b. p. method methyl mixed m. p. mixture molecule obtained oxide phenyl plates potassium hydroxide precipitated prepared pressure prisms pyridine Q-enzyme R₁ R₂ reaction reagent reduced removed requires residue room temperature salt semicarbazone separated sodium hydroxide solid soluble solvent specimen structure substance sulphate sulphone sulphuric acid synthesis Table unsaturated washed yield