Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 5
... relative reactivi- ties shall not vary with conditions . This was tested by determining the relative rates of nitration of mesitylene and m - xylene over as wide a range of concentrations of nitric acid as possible , and in media of ...
... relative reactivi- ties shall not vary with conditions . This was tested by determining the relative rates of nitration of mesitylene and m - xylene over as wide a range of concentrations of nitric acid as possible , and in media of ...
Page 151
... Relative abundances of ' metastable peaks ' and daughter ions in the mass spectrum of [ 2-2H1 ] benzothiazole ( 2 ) at various ev a [ M + -- DCN ] / [ M + — HCN ] ev 2m * 1m * Do 70 0.49 0.89 9.7 18 0.87 9.2 16 0.64 0.96 7.1 15 1.00 7.1 ...
... Relative abundances of ' metastable peaks ' and daughter ions in the mass spectrum of [ 2-2H1 ] benzothiazole ( 2 ) at various ev a [ M + -- DCN ] / [ M + — HCN ] ev 2m * 1m * Do 70 0.49 0.89 9.7 18 0.87 9.2 16 0.64 0.96 7.1 15 1.00 7.1 ...
Page 386
... relative to the t - butylammonium resonance - 10 , -3 * The group whose resonances are reported is italicised . TABLE 2 Chemical shifts ( in Hz ) caused by protonation of the a - CH and N - Me resonances of N - methyl- and NN - dimethyl ...
... relative to the t - butylammonium resonance - 10 , -3 * The group whose resonances are reported is italicised . TABLE 2 Chemical shifts ( in Hz ) caused by protonation of the a - CH and N - Me resonances of N - methyl- and NN - dimethyl ...
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 activation added addition alcohol Amer analysis angles appears aqueous atom base benzene bond bromide calculated carbon carbon tetrachloride Chem chemical chloride compared complex compounds concentration conformation constants containing corresponding coupling derived described determined DISCUSSION effect electron energy equation esters ethanol ether expected experimental experiments factor Figure followed formation formed further gave give given hydrogen hydrolysis increase indicate initial intermediate involving kinetic less measured mechanism method methyl mixing mixture mole molecular molecule nitration observed obtained occurs organic oxidation oxygen peaks peroxide Phys plot position possible prepared present pressure proton radical rate constants ratio reaction reactivity reduced relative reported requires resonance respectively ring salts shifts showed shown similar sodium solution solvent spectra spectrum structure studied substituent suggested Table temperature values yield