Journal of the Chemical Society, Part 2Chemical Society., 1949 |
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Results 1-3 of 73
Page 1017
... yellow , fluffy needles ( 2 ) ( yield , 98 % ) ( Found : C , 54-4 ; H , 3.05 ; N , 22.8 . CH , O , N , requires C , 54-0 ; H , 2-9 ; N , 22.5 % ) . The 7 - nitro- isomer separated ( 1 or 2 ) in stout , yellow , brittle needles , m . p ...
... yellow , fluffy needles ( 2 ) ( yield , 98 % ) ( Found : C , 54-4 ; H , 3.05 ; N , 22.8 . CH , O , N , requires C , 54-0 ; H , 2-9 ; N , 22.5 % ) . The 7 - nitro- isomer separated ( 1 or 2 ) in stout , yellow , brittle needles , m . p ...
Page 1245
... yellow needles , m . p . 187-189 ° , undepressed by anthragallol triacetate . From the benzene - soluble fraction was obtained a bright red substance ( 17 mg . ) , m . p . 150—155 ° , insoluble in water but readily soluble in organic ...
... yellow needles , m . p . 187-189 ° , undepressed by anthragallol triacetate . From the benzene - soluble fraction was obtained a bright red substance ( 17 mg . ) , m . p . 150—155 ° , insoluble in water but readily soluble in organic ...
Page 1534
... yellow precipitate was crystallised from aqueous ethanol ( charcoal ) and then acetic acid ; glittering yellow needles , m . p . 239-240 ° ( decomp . ) ( Found : N , 5-8 Cl , 14-25 . C11H , O , NCI requires N , 5-55 ; Cl , 14.1 ...
... yellow precipitate was crystallised from aqueous ethanol ( charcoal ) and then acetic acid ; glittering yellow needles , m . p . 239-240 ° ( decomp . ) ( Found : N , 5-8 Cl , 14-25 . C11H , O , NCI requires N , 5-55 ; Cl , 14.1 ...
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Common terms and phrases
4-dinitrophenylhydrazone absorption acetic anhydride acetone acetyl acidified added aldehyde alkaline aluminium chloride Amer amine ammonia aniline aqueous sodium atom benzene boiling bond bromine Calc carbon catalyst CH₂ Chem chloroform citrinin colourless needles compound condensation cooled crystallised crystallised from alcohol crystals cyanide cyclisation decomp derivative dilute dissolved distilled dried electrode ester evaporated extracted with ether filtered filtrate formed colourless Found fraction gave give heated under reflux hydrochloric acid hydrogen chloride hydrolysis iodide isolated ketone lactone light petroleum b. p. m. p. and mixed methanol method methyl alcohol minutes mixed m. p. mixture molecule obtained oxide phenol phosphoric picrate potassium hydroxide precipitate prepared pyridine reaction reduced pressure requires residue resin room temperature salt separated sodium hydroxide solid soluble solution solvent specimen structure substance sulphuric acid triethylamine values washed yellow needles yield