Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 104
... sulphuric acid : ( A ) thiophen , ( B ) 2 - chlorothiophen , and ( C ) 2 - methylthiophen but the values of both AH ‡ and AS ‡ are similar to those for the nitration of benzene and mesitylene ( Table 4 ) , calculated from the data of ...
... sulphuric acid : ( A ) thiophen , ( B ) 2 - chlorothiophen , and ( C ) 2 - methylthiophen but the values of both AH ‡ and AS ‡ are similar to those for the nitration of benzene and mesitylene ( Table 4 ) , calculated from the data of ...
Page 713
... sulphuric acid . marked function of the acidity and permits the following reactivities to be calculated , relative to that of benzene as unity : 4 - phenylpyridinium ion , 2.1 x 104 ; 4 - benzyl- pyridinium ion , 0.15 ; 4 - benzyl - 1 ...
... sulphuric acid . marked function of the acidity and permits the following reactivities to be calculated , relative to that of benzene as unity : 4 - phenylpyridinium ion , 2.1 x 104 ; 4 - benzyl- pyridinium ion , 0.15 ; 4 - benzyl - 1 ...
Page 1338
... sulphuric acid less concentrated than 28N and under any conditions for ion ( III ) . Therefore the information ... sulphuric acid : A ( Ip ) in sulphuric acid + ethanol ( 20 % v / v ) ( from ref . 1 ) , A ( IIp ) in sulphuric acid ...
... sulphuric acid less concentrated than 28N and under any conditions for ion ( III ) . Therefore the information ... sulphuric acid : A ( Ip ) in sulphuric acid + ethanol ( 20 % v / v ) ( from ref . 1 ) , A ( IIp ) in sulphuric acid ...
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