Quarterly Journal of the Chemical Society of London |
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Page 49
... absorption above 2100 A. ( the original material being recovered from the solution after the measure- ments ( see Experimental ) ) , and this is paralleled by the well known reversion of the ultra - violet absorption of aniline to that ...
... absorption above 2100 A. ( the original material being recovered from the solution after the measure- ments ( see Experimental ) ) , and this is paralleled by the well known reversion of the ultra - violet absorption of aniline to that ...
Page 125
... absorption is particularly marked in the tertiary carbinols , possibly owing to slow dehydration , and in the propargylcarbinols . No definite case of thermal isomerisation has been observed , and the initial absorption could usually be ...
... absorption is particularly marked in the tertiary carbinols , possibly owing to slow dehydration , and in the propargylcarbinols . No definite case of thermal isomerisation has been observed , and the initial absorption could usually be ...
Page 502
... absorption at 3150 a . This corresponds very closely to the absorption of the methyl ether ( X ) described above and it seems unlikely that the vitamin A chromophoric system is present in the final product . Had the author been able to ...
... absorption at 3150 a . This corresponds very closely to the absorption of the methyl ether ( X ) described above and it seems unlikely that the vitamin A chromophoric system is present in the final product . Had the author been able to ...
Contents
The Ternary Systems NaSCNCa SCNH₂O KSCNCaSCNH₂O NHSCNCaSCNH₂O | 1 |
Rareearth Metal Oxides | 7 |
The Acetone Derivatives of Hexahydric Alcohols Part I Triacetone Mannitol and its Conversion | 13 |
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Common terms and phrases
3′-pyridoacridine 4-dideuterobenzene absorption acetic acid acetone acridone active added alkali alkyl Amer amidine ammonia atoms bands benzene bimolecular boiling Calc carbinol CH₂ Chem Chemical chloride combination tones compound condensation cooled crude crystallised D.Sc decomp derivative deuterated benzenes deuterium dilute dissolved distilled dried effect ester ether ethyl alcohol experimental extracted filtered formed Found fraction fundamental frequencies gave give b. p. halides heated hexadeuterobenzene hydrochloric acid hydrochloride hydrogen hydrolysis infra-red spectrum Ingold iodide ionisation isolated ketone kg.-cals ligroin methanol method mixture molecule monodeuterobenzene neopentyl neopentyl bromide nitrate normal co-ordinates obtained oxide picrate potassium potassium carbonate praseodymium precipitate prepared prisms pyridine Raman spectrum reaction reagent rearrangement refluxed requires residue salt separated sodium carbonate sodium hydroxide solid soluble solution solvent spectra steric steric effect stirred substitution sulphate sulphuric acid symmetry class Table temperature washed yellow needles yield