Quarterly Journal of the Chemical Society of London, Part 3 |
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Page 2440
... added . The resulting white precipitate of silver cyclohepta - 2,4,6 - trienecarboxylate was filtered off , was washed with water , then acetone , partially dried at 100 ° for 30 min . , and finally dried in vacuo over phosphoric oxide ...
... added . The resulting white precipitate of silver cyclohepta - 2,4,6 - trienecarboxylate was filtered off , was washed with water , then acetone , partially dried at 100 ° for 30 min . , and finally dried in vacuo over phosphoric oxide ...
Page 2751
... added sodium thiosulphate ( 24.8 g . , 0.1 mole ) in water ( 30 ml . ) . Any iodine remaining after 10 min . was removed by cautiously adding more thiosulphate . Potassium iodide ( 20 g . ) in water ( 10 ml . ) was then added , and the ...
... added sodium thiosulphate ( 24.8 g . , 0.1 mole ) in water ( 30 ml . ) . Any iodine remaining after 10 min . was removed by cautiously adding more thiosulphate . Potassium iodide ( 20 g . ) in water ( 10 ml . ) was then added , and the ...
Page 2769
... added in 2 hr . so that the temperature remained below 20 ° . After a further 2 hr . ice was added , and the whole poured into ice - water ( 1 1. ) and ether , the ether extract was dried and evaporated , and the residue in methanol ...
... added in 2 hr . so that the temperature remained below 20 ° . After a further 2 hr . ice was added , and the whole poured into ice - water ( 1 1. ) and ether , the ether extract was dried and evaporated , and the residue in methanol ...
Contents
2454 | 2314 |
Substituted carbonyl compounds of chromium molybdenum tungsten and man | 2323 |
Thiohydantoins Part IV Oxidation in alkaline solution by molecular oxygen | 2327 |
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1,3,5-trinitrobenzene 3-dimethylbarbituric acid absorption acetic acid acetone added alcohol alkaline alkyl Amax Amer amines anhydride aqueous aromatic benzene boiling bond bromide Calc carbon carbon tetrachloride carbonyl cation Chem chloride chloroform chromatography cinnoline complex compound concentration cooled crystallised crystals cyclisation decomp derivatives dilute dioxide distilled dried ester ethanol evaporated filtered filtrate formed Found fraction gave give glycollic acid glyoxylic acid heated hydrochloric acid hydrolysis infrared infrared spectrum iodide isomer light petroleum b. p. lithium lithium aluminium hydride m. p. and mixed methyl methyl iodide methylamine mixed m. p. mixture mole molecular molecule N-methyl obtained oxidation oxygen phenol picrate polymer potassium precipitate prepared prisms pyridine reaction reduced refluxed requires residue room temperature salt sodium hydroxide solid soluble solution solvent spectra stirred structure sulphuric acid Table titration trisaccharide ultraviolet values washed yellow needles yield