Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 28
... shifts of the methyl groups of esters and the pK values of the acids from which they are derived . The relationship between the two correlations is con- sidered to show that both sets of chemical shifts are dominated by changes in the ...
... shifts of the methyl groups of esters and the pK values of the acids from which they are derived . The relationship between the two correlations is con- sidered to show that both sets of chemical shifts are dominated by changes in the ...
Page 252
... shifts for trans - perfluorodecalin are also given in Table 3 . TABLE 3 Calculated and observed 19F shifts for perfluorobicyclo- [ 2,2,1 ] heptane and trans - perfluorodecalin Compound Position Scale ( p.p.m. ) 95.2 Including tributions ...
... shifts for trans - perfluorodecalin are also given in Table 3 . TABLE 3 Calculated and observed 19F shifts for perfluorobicyclo- [ 2,2,1 ] heptane and trans - perfluorodecalin Compound Position Scale ( p.p.m. ) 95.2 Including tributions ...
Page 434
... shifts show the same linear dependence on π - electron densities as the para - shifts . This could be taken to indicate that a linear relationship between 8 and AP is inadequate . An attempt to calculate the magnitude of the shielding ...
... shifts show the same linear dependence on π - electron densities as the para - shifts . This could be taken to indicate that a linear relationship between 8 and AP is inadequate . An attempt to calculate the magnitude of the shielding ...
Contents
Physical organic chemistry | 1 |
Aromatic reactivity Part XXXVIII Protodesilylation of 12dihydrobenzocyclobutene indan and tetralin | 12 |
Aromatic reactivity Part XL Additional substituent effects in protodetrimethylsilylation | 21 |
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absorption acetic acid Acta alcohol alkyl Amer amine angles anion aqueous aromatic ation benzene bond bromide calculated carbon tetrachloride CH₂ Chem chemical shifts Chemistry Chim chloride CO₂H coefficients compounds concentration conformation corresponding coupling constants decomposition derived di-imine dioxan dipole effect electron equation esters ethanol ether experimental Figure first-order fluorine formation formed hydrogen hydrolysis hydroxide hypochlorous acid interaction intermediate iodide irradiation isomer isomerisation isopropyl k₁ ketone kinetic measured mechanism mercuric mesitylene method methyl mixture mole mole-¹ molecular molecule n.m.r. spectra nitration nitrogen observed obtained olefin oxidation oxygen peaks peroxide phenyl Phys plot polymer proton radical rate constants ratio reactants reaction reactivity reduced relative resonance ring salts showed shown similar singlet sodium solution solvent solvolysis spectrum steric steric effect structure substituent sulphoxide t-butyl Table temperature titanium(III triethyl phosphite values