Journal of the Chemical Society, Part 1Chemical Society., 1949 |
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Page 40
... separated was collected and recrystallised from ethanol . 2 - Methyldinaphthyl picrate ( 4.5 g . ) separated in golden orange plates , m . p . 152–154 ° , undepressed in admixture with the specimen previously obtained . The picrate ...
... separated was collected and recrystallised from ethanol . 2 - Methyldinaphthyl picrate ( 4.5 g . ) separated in golden orange plates , m . p . 152–154 ° , undepressed in admixture with the specimen previously obtained . The picrate ...
Page 175
... separated from the ax ' - diquinolyl formed as its 2 : 4 - dinitrophenylhydrazone , and identified by mixed m . p . It was not possible to investigate the displacement of halide ions from aliphatic halides , since complications would ...
... separated from the ax ' - diquinolyl formed as its 2 : 4 - dinitrophenylhydrazone , and identified by mixed m . p . It was not possible to investigate the displacement of halide ions from aliphatic halides , since complications would ...
Page 265
... separated crystallised on keeping for 48 hours in the ice chest ; this , on recrystallisation from boiling acetone ( 50 c.c. ) , gave a further amount ( 13 g . ) of 4 - methyl - 2- benzamidomethyliminazole , m . p . 184-186 ° ( total ...
... separated crystallised on keeping for 48 hours in the ice chest ; this , on recrystallisation from boiling acetone ( 50 c.c. ) , gave a further amount ( 13 g . ) of 4 - methyl - 2- benzamidomethyliminazole , m . p . 184-186 ° ( total ...
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Common terms and phrases
absorption acetic anhydride acetone added addition alkaline aluminium aluminium chloride Amer ammonia anhydride atom benzene boiling bond bromide Calc carbon catalyst CH₂ Chem chloroform colourless needles compound concentration condensation cooled crystallised crystals curve cyanide 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 removed requires residue room temperature salt separated sodium hydroxide solid soluble solution solvent stirred structure sulphate sulphide sulphone sulphuric acid thionyl chloride washed yellow yield