Journal of the Chemical SocietyThe Society., 1949 |
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Page 86
... excess of liquid bromine or of bromine in an inert solvent , the only product is tetrakis - 4 - bromophenylethylene ( Biltz , Annalen , 1897 , 296 , 231 ) , and the same product is obtained from tetraphenylethylene dichloride ( Norris ...
... excess of liquid bromine or of bromine in an inert solvent , the only product is tetrakis - 4 - bromophenylethylene ( Biltz , Annalen , 1897 , 296 , 231 ) , and the same product is obtained from tetraphenylethylene dichloride ( Norris ...
Page 136
... excess acid ; it was then diluted to 40 g./1 . and partly precipitated by the current of ammonia and air , and allowed to stand for a few hours . The precipitate was then filtered off , and the solution returned to its bottle for ...
... excess acid ; it was then diluted to 40 g./1 . and partly precipitated by the current of ammonia and air , and allowed to stand for a few hours . The precipitate was then filtered off , and the solution returned to its bottle for ...
Page 287
... excess ( 5 g . ) of dry methyl iodide . Trimethylsulphonium iodide slowly crystallises from the reaction mixture and is obtained pure by the procedure above . The reaction occurs also at room temperature , but is much slower than that ...
... excess ( 5 g . ) of dry methyl iodide . Trimethylsulphonium iodide slowly crystallises from the reaction mixture and is obtained pure by the procedure above . The reaction occurs also at room temperature , but is much slower than that ...
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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