Quarterly Journal of the Chemical Society of London |
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Page 1
... Ring Scission . By W. N. HAWORTH , W. G. M. JONES , and L. F. WIGGINS . 5 - Hydroxymethylfurfuraldehyde is converted into 2 : 5 - bishydroxymethyltetrahydrofuran and 5 - hydroxy- methylfuran - 2 - carboxylic acid into the corresponding ...
... Ring Scission . By W. N. HAWORTH , W. G. M. JONES , and L. F. WIGGINS . 5 - Hydroxymethylfurfuraldehyde is converted into 2 : 5 - bishydroxymethyltetrahydrofuran and 5 - hydroxy- methylfuran - 2 - carboxylic acid into the corresponding ...
Page 5
... ring scission and 1 : 6 - dichloro mannitol is obtained . Positions 1 and 6 are therefore involved in the anhydro rings . ( 2 ) Lead tetra - acetate is without action on isomannide , an indication that the two hydroxyl groups are not on ...
... ring scission and 1 : 6 - dichloro mannitol is obtained . Positions 1 and 6 are therefore involved in the anhydro rings . ( 2 ) Lead tetra - acetate is without action on isomannide , an indication that the two hydroxyl groups are not on ...
Page 266
... rings undergoes rupture at the bond common to the benzene and the four - membered ring ( Baker , loc . cit . ) . More recently , however , three pieces of evidence have become available which give strong support to the diphenylene ...
... rings undergoes rupture at the bond common to the benzene and the four - membered ring ( Baker , loc . cit . ) . More recently , however , three pieces of evidence have become available which give strong support to the diphenylene ...
Contents
An Investigation of the Occurrence of the Coordinate or Dative Link by Electric Dipolemoment | 38 |
Electrolytic Dissociation Processes Part IV The Ionisation of a CarbonHalogen Bond | 129 |
By J SHERIDAN | 133 |
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4-benzthiazine absorption acetic anhydride acetone acetyl acetylene added addition adsorbed alkali Amer ammonia aqueous atoms benzene boiling bond Calc carbinol carbon catalyst CHâ‚‚ Chem chloroform colourless needles compound concentrated condensation cooling crystallised from alcohol crystals cyclisation D.Sc decomp derivative described dilute dissolved distilled dried ester ethanol ether ethylene evaporated EXPERIMENTAL extracted filtered filtrate formation formed Found fraction gave give heated hydrocarbons hydrochloric acid hydrogen bromide hydrogen chloride hydrolysis iodide isolated ketone light petroleum liquid methiodide method methyl alcohol mixed m. p. mixture molecule nickel nitric nitrogen obtained optically oxide oxychloride phosphate phosphorus picrate potassium potassium hydroxide precipitate prepared pressure prisms pyridine reaction reduced refluxed requires residue ring room temperature salt saturated separated sodium carbonate sodium hydroxide solid soluble solution solvent structure substance sulphate sulphuric acid vacuum washed yellow needles yield zinc