Quarterly Journal of the Chemical Society of London, Volume 6 |
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Page 1144
... Benzene 25 3.67 0.226 175-8 58.0 56.7 2.380-03 1,2 - Di- ( 2 - pyridyl ) ethane Benzene 25 3.38 0.191 168.1 55.7 57.0 2.31 ± 0.01 meso - 2,3 - Di- ( 4 - pyridyl ) butane Benzene 25 1.66 0.204 127.3 64.6 65.3 1.75 0.02 2,3 - Dimethyl - 2 ...
... Benzene 25 3.67 0.226 175-8 58.0 56.7 2.380-03 1,2 - Di- ( 2 - pyridyl ) ethane Benzene 25 3.38 0.191 168.1 55.7 57.0 2.31 ± 0.01 meso - 2,3 - Di- ( 4 - pyridyl ) butane Benzene 25 1.66 0.204 127.3 64.6 65.3 1.75 0.02 2,3 - Dimethyl - 2 ...
Page 1226
... benzene as above with toluene - p - sulphonic acid as catalyst . After the mixture had been standing for 3 days at 5 ° , the crystals were filtered off and taken up in fresh benzene . The solution was washed with ammonium hydroxide ...
... benzene as above with toluene - p - sulphonic acid as catalyst . After the mixture had been standing for 3 days at 5 ° , the crystals were filtered off and taken up in fresh benzene . The solution was washed with ammonium hydroxide ...
Page 1350
... benzene derivative acquires an induced transi- tion moment orientated along the longer in - plane axis ( 1 ) of the chromophore ( II ) , whilst the high - energy ẞ- or Bab - transition , which is allowed and doubly - degenerate in benzene ...
... benzene derivative acquires an induced transi- tion moment orientated along the longer in - plane axis ( 1 ) of the chromophore ( II ) , whilst the high - energy ẞ- or Bab - transition , which is allowed and doubly - degenerate in benzene ...
Contents
ISCHA 013 | 1034 |
Physical organic chemistry | 1035 |
Studies of the reactions of the anhydrosulphites of ahydroxycarboxylic acids Part IV Steric | 1044 |
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2,4-dinitrophenyl absorption acetic acid aci-anion acid anhydrosulphite addition adducts alcohol Amer amine aqueous aromatic ation atom attack bands benzene benzyl bond buffer calculated carbon carbon tetrachloride carbonyl catalysis Chem chloride compounds concentration conformation corresponding decomposition derived dioxan dipole effect electron electrophilic equation ester ethanol ether ethylene experimental Figure first-order formation formed hydride hydrogen hydrolysis hydroxide hydroxyl interaction isomer k₁ k₂ kinetic leaving group measured mechanism methyl mixture molar mole mole-¹ molecular molecules nitrogen nitromethane NO₂ nucleophilic observed obtained oxidation oxyanions peroxide persulphate phenyl phenylacetic acid phosphate plot proton pyridine R. J. W. Le Fèvre R. O. C. Norman radical anion rate constants ratio reaction reactivity reduction ring rotation showed similar sodium solution solvent solvolysis spectra spectrum splitting constants steric structure studied substituent sulphate radical anion sulphur Table temperature thiophen titanium(III values yield ΣΔε/Σω