Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 71
... attack is further away from the re- action centre , decreasing p'N , the increase in size of the attacking nucleophile ( MeOH ) compared with that for alkaline ester hydrolysis ( OH- ) will increase p'N , and thus there is a ...
... attack is further away from the re- action centre , decreasing p'N , the increase in size of the attacking nucleophile ( MeOH ) compared with that for alkaline ester hydrolysis ( OH- ) will increase p'N , and thus there is a ...
Page 152
... attack [ case ( b ) ] . The concerted process ( d ) will occur when the conditions for ( c ) are evident and when formation of the ' internal nucleophile promotes intramolecular attack . If hy- dration is very slow and highly ...
... attack [ case ( b ) ] . The concerted process ( d ) will occur when the conditions for ( c ) are evident and when formation of the ' internal nucleophile promotes intramolecular attack . If hy- dration is very slow and highly ...
Page 851
... attacked by the nucleophile [ reaction ( 5 ) ] . Such a mechanism has been invoked in the formation of penicilloyl proteins in connection with allergy 30 as an alternative to direct attack at the lactam ring of penicillin.31 However if ...
... attacked by the nucleophile [ reaction ( 5 ) ] . Such a mechanism has been invoked in the formation of penicilloyl proteins in connection with allergy 30 as an alternative to direct attack at the lactam ring of penicillin.31 However if ...
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