Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 145
... bond sweeps through a 360 ° rotation about the polar O - H bond . When these bonds are cis - periplanar ( 0 ° ) nuclear - nuclear and electron - electron repulsion out- weighs the nuclear - electron attraction ( which might be ...
... bond sweeps through a 360 ° rotation about the polar O - H bond . When these bonds are cis - periplanar ( 0 ° ) nuclear - nuclear and electron - electron repulsion out- weighs the nuclear - electron attraction ( which might be ...
Page 502
... bond breaking causes decreased Ca - O bond breaking in the transition state . = 4+ log k2 3.0 C D 20 100 0.0 0.4 0.8 FIGURE 3 Graph of log k , against oy for compounds ( I ) : A , Z m - Cl ; B , _Z = p - Cl ; C , Z = m - OMe ; D , Z = H ...
... bond breaking causes decreased Ca - O bond breaking in the transition state . = 4+ log k2 3.0 C D 20 100 0.0 0.4 0.8 FIGURE 3 Graph of log k , against oy for compounds ( I ) : A , Z m - Cl ; B , _Z = p - Cl ; C , Z = m - OMe ; D , Z = H ...
Page 572
... bonds , allowance being made for interaction between these bond moments ( X symbolises the para - substituent ) . If , as suggested , additional conjugation of the hydroxy - group with the extended TABLE 2 † Apparent dipole moments of 4 ...
... bonds , allowance being made for interaction between these bond moments ( X symbolises the para - substituent ) . If , as suggested , additional conjugation of the hydroxy - group with the extended TABLE 2 † Apparent dipole moments of 4 ...
Contents
Physical organic chemistry | 1 |
Kinetics and mechanism of electrophilic substitution of heteroaromatic compounds Part XXIV Acid | 11 |
Contents iii | 16 |
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A2 mechanism absorption 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 correlation deuterium diastereomers dienamines dioxan dioxan-water 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 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 silver perchlorate sodium solution solvent steric steric effects structure studied substituent substituted substrate sulphuric t-butyl Table temperature Tetrahedron thiophen trans triethylborane values