Journal of the Chemical SocietyThe Society., 1953 |
From inside the book
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Page 83
... Dried Acidic Polysaccharides .- ( i ) Rhizobium radicicolum polysaccharide ( 0.5 g .; [ x ] -18 ° in H2O ) was reprecipitated at pH 3 from acetic acid solution by gradual addition of ethanol ( 5 volumes ) , and the product was dried by ...
... Dried Acidic Polysaccharides .- ( i ) Rhizobium radicicolum polysaccharide ( 0.5 g .; [ x ] -18 ° in H2O ) was reprecipitated at pH 3 from acetic acid solution by gradual addition of ethanol ( 5 volumes ) , and the product was dried by ...
Page 440
... dried " AnalaR " reagents . Methanol was treated with iodine and sodium hydroxide to remove ethanol , fractionated , dried ( K2CO2 ) , and redistilled from magnesium ; it had b . p . 65 ° . Ethanol , distilled from magnesium , had b . p ...
... dried " AnalaR " reagents . Methanol was treated with iodine and sodium hydroxide to remove ethanol , fractionated , dried ( K2CO2 ) , and redistilled from magnesium ; it had b . p . 65 ° . Ethanol , distilled from magnesium , had b . p ...
Page 694
... dried at 140 ° / 0 · 1 mm .: C , 69-9 ; H , 6 · 0 ; loss on drying , 2.9 % . ( ii ) Recrystallised from light petroleum ( b . p . 80-100 ° ) . Found , in material dried for 12 hours at 100 ° / 0 · 1 mm . : C , 72-0 ; H , 5 · 9 ; OMe ...
... dried at 140 ° / 0 · 1 mm .: C , 69-9 ; H , 6 · 0 ; loss on drying , 2.9 % . ( ii ) Recrystallised from light petroleum ( b . p . 80-100 ° ) . Found , in material dried for 12 hours at 100 ° / 0 · 1 mm . : C , 72-0 ; H , 5 · 9 ; OMe ...
Contents
Internuclear Cyclisation Part VII The Synthesis of Some NitroNmethyl | 1 |
Synthesis of Polymethylnaphthalenes | 8 |
Kestose a Trisaccharide formed from Sucrose by Yeast Invertase | 24 |
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absorption acetic acid acetic anhydride acetone acetyl acidified added alcohol alkaline aluminium aluminium chloride Amer amine aqueous sodium atom benzene boiling bromine Calc carbon Chem Chim chloroform chromatographed colourless compound concentrated cooled crystallised crystals D.Sc decomp derivatives dilute dissolved distilled dried elution equiv ester ethanol ethyl acetate ethylene evaporated extracted with ether filtered filtrate formed Found fraction gave give m. p. H₂O heated hydrochloric acid hydrogen chloride hydrogen sulphate hydrolysis hydroxyl infra-red iodide isolated ketone light petroleum b. p. liquid lithium aluminium hydride m. p. and mixed method mixed m. p. mixture mole obtained oxidation oxidised pale yellow phosphorochloridate polyporenic potassium hydroxide precipitate prepared prisms pyridine reaction reduced refluxed requires residue room temperature salt sodium hydroxide solid soluble solution solvent spectra sulphuric acid ultra-violet washed yellow needles yield