Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 143
... lower curve in Figure 5 is a plot of [ ET ( NH2OH ) + ET ( H2O2 ) ] and the upper curve is a plot of ET ( MeOH ) for the region 0 120 ° to 0 = 240 ° . This is the region for which detailed computational data are available ; 60 existence ...
... lower curve in Figure 5 is a plot of [ ET ( NH2OH ) + ET ( H2O2 ) ] and the upper curve is a plot of ET ( MeOH ) for the region 0 120 ° to 0 = 240 ° . This is the region for which detailed computational data are available ; 60 existence ...
Page 227
... lower than those observed in the methoxydehalogenations . In all cases the activation energy is lower for the dis- placement of fluorine than for that of chlorine . The differences range from 14 to 7 kcal / mol . When such differences ...
... lower than those observed in the methoxydehalogenations . In all cases the activation energy is lower for the dis- placement of fluorine than for that of chlorine . The differences range from 14 to 7 kcal / mol . When such differences ...
Page 288
... lower . * Thus it is the five- ( and not the six- ) membered oxygen ring which shows an anomalous KT ( identified for the greater part with the direct ring - strain effect ) . Ring effects on the ionization constants are similarly ...
... lower . * Thus it is the five- ( and not the six- ) membered oxygen ring which shows an anomalous KT ( identified for the greater part with the direct ring - strain effect ) . Ring effects on the ionization constants are similarly ...
Contents
Physical organic chemistry | 1 |
Contents | 6 |
Kinetics and mechanism of electrophilic substitution of heteroaromatic compounds Part XXIV Acid | 11 |
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A2 mechanism acetic acid-catalysed addition alcohol alkaline hydrolysis Amer analysis anion aqueous aromatic benzene benzoate bond bromine cal mol-1 calculated carbon atom carbonium ion carbonyl catalysis Chem Chemistry chlorine compounds concentration conjugate conjugate acid correlation deuterium diastereomers dienamines dioxan electron pairs energy entropies of activation epoxide equation esters ether ethylene exchange experimental Figure formation glycol H₂O hydrogen hydroxide hypochlorous acid indicate intramolecular isomer isotope effects k₁ k₂ ketone kinetic MeOH methanol methanolysis methiodide method methyl mixture mmHg mol-¹ molecular molecule n-pentyl n.m.r. spectra nitration nucleophilic observed obtained olefin oxidation oxygen p-xylene parameters perchloric acid Phys polar positive proton R. J. W. Le Fèvre radical rate coefficients rate constants ratio reaction constant reactivity relative resorcinol ring sodium solution solvent steric steric effects structure studied substituent substituted substrate t-butyl Table temperature Tetrahedron thiophen trans triethylborane values