Quarterly Journal of the Chemical Society of London |
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Page 145
... solvent . The colourless solution gave on evaporation a greenish oil which soon solidified . It was dissolved in 1-5 1. of petroleum and percolated through 100 g . of alumina , the column being then washed with 1-5 1. of the same solvent ...
... solvent . The colourless solution gave on evaporation a greenish oil which soon solidified . It was dissolved in 1-5 1. of petroleum and percolated through 100 g . of alumina , the column being then washed with 1-5 1. of the same solvent ...
Page 509
... solvent ; the upper capillary was then cut , and the boron tribromide allowed to flow into the solvent with a minimum contact with the atmosphere . Stannic bromide . A commercial product was redistilled and filled in a similar manner ...
... solvent ; the upper capillary was then cut , and the boron tribromide allowed to flow into the solvent with a minimum contact with the atmosphere . Stannic bromide . A commercial product was redistilled and filled in a similar manner ...
Page 511
... solvent was boiled and allowed to cool in a stream of nitrogen dried by sulphuric acid , and subsequent operations were carried out in a current of nitrogen . The reaction bottles were cleaned with chromic acid solution ( 24 hours ) ...
... solvent was boiled and allowed to cool in a stream of nitrogen dried by sulphuric acid , and subsequent operations were carried out in a current of nitrogen . The reaction bottles were cleaned with chromic acid solution ( 24 hours ) ...
Contents
The final crop was therefore the optically pure lselenonium dsulphonate m p 157159 with preliminary softening | 1 |
An Investigation of the Occurrence of the Coordinate or Dative Link by Electric Dipolemoment | 38 |
p 65100 decomp Crop I which was collected washed with methyl alcohol and dried Cautious | 43 |
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Common terms and phrases
4-benzthiazine absorption acetic anhydride acetone acetyl acetylene added addition aldehyde alkali Amer aqueous arsenic arsine arsonium atoms barium benzene boiling Calc carbinol carbon catalyst CH₂ Chem Chemical chloride chloroform CO₂H colourless compound condensation containing cooled crystallised crystals D.Sc decomp derivatives dilute dissolved distilled double bonds dried ester ethereal solution ethyl acetate ethylene evaporated experimental extracted filtered filtrate formation formed Found fraction furan gave give heated hydrocarbons hydrochloric acid hydrogen bromide hydrolysis iodide isolated ketone liquid methanol method methyl alcohol methyl ether mixed m. p. mixture molecule nickel nitrogen obtained optically oxide oxychloride phenylhydrazones phosphate phosphorus picrate potassium potassium hydroxide precipitate prepared presence prisms pyridine reaction reagent reduced refluxed requires residue ring room temperature salt separated sodium carbonate sodium hydroxide solid soluble solvent structure substance sulphate sulphuric acid tetrahydrofurfuryl umbellulone vacuum values washed yield zinc