Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 37
... experimental results show that λ in fact does increase with r , indicating general acid catalysis by either H & R or HR- ( or both ) . The linearity of the graph of λ against r ( [ OH - ] / S ) 2 ( Figure 2 ) shows that over this range ...
... experimental results show that λ in fact does increase with r , indicating general acid catalysis by either H & R or HR- ( or both ) . The linearity of the graph of λ against r ( [ OH - ] / S ) 2 ( Figure 2 ) shows that over this range ...
Page 164
... experimental line- width . Some uncertainty arose in interpreting the spec- trum ( a 1 : 4 : 6 : 4 : 1 quintet ) of the 4,4 ′ - dinitrothiobenzo- phenone radical since neither the splitting with the ortho- hydrogens , nor that expected ...
... experimental line- width . Some uncertainty arose in interpreting the spec- trum ( a 1 : 4 : 6 : 4 : 1 quintet ) of the 4,4 ′ - dinitrothiobenzo- phenone radical since neither the splitting with the ortho- hydrogens , nor that expected ...
Page 516
... EXPERIMENTAL A The chemical shift of the proton showing the largest benzene - induced solvent shift was measured for a series of mixtures of each substance with benzene in carbon tetra- chloride . The 100 MHz proton spectra were ...
... EXPERIMENTAL A The chemical shift of the proton showing the largest benzene - induced solvent shift was measured for a series of mixtures of each substance with benzene in carbon tetra- chloride . The 100 MHz proton spectra were ...
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