Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 7
... followed by observing the collapse of the 3- proton doublet into a decoupled singlet . As the acidity increased , exchange of the 5- and 8 - protons also took place followed by one further proton , which on the n.m.r. evidence could ...
... followed by observing the collapse of the 3- proton doublet into a decoupled singlet . As the acidity increased , exchange of the 5- and 8 - protons also took place followed by one further proton , which on the n.m.r. evidence could ...
Page 871
... followed by competition between ( i ) expulsion of the halide ion followed by N - H bond cleavage , and ( ii ) amine- catalysed N - H bond cleavage followed by a carbon - halogen bond cleavage . Process ( i ) governs the behaviour of ...
... followed by competition between ( i ) expulsion of the halide ion followed by N - H bond cleavage , and ( ii ) amine- catalysed N - H bond cleavage followed by a carbon - halogen bond cleavage . Process ( i ) governs the behaviour of ...
Page 975
... followed spectrophoto- metrically . The difference in the u.v. spectra of covalent tosylate and toluene - p - sulphonic acid 47 enabled the acetolysis of 1 - adamantyl tosylate to be followed ; minimise solvent absorption , this ...
... followed spectrophoto- metrically . The difference in the u.v. spectra of covalent tosylate and toluene - p - sulphonic acid 47 enabled the acetolysis of 1 - adamantyl tosylate to be followed ; minimise solvent absorption , this ...
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