Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 524
... containing various amounts of acetic acid . The results in Table 7 show that , as the ratio of total available acetic acid to trifluoroacetic acid is increased from about 0-3 : 1 to 16 : 1 , the ratio of the yield of dimethoxy ...
... containing various amounts of acetic acid . The results in Table 7 show that , as the ratio of total available acetic acid to trifluoroacetic acid is increased from about 0-3 : 1 to 16 : 1 , the ratio of the yield of dimethoxy ...
Page 1049
... containing less than 10 % of cis - isomer ( n.m.r. ) . trans - 1 - Ethyl - 4 - phthalimido- cyclohexane formed plates , m.p. 128-129 ° ( Found : C , 74.4 ; H , 7.4 ; N , 5.4 . C16H19NO , requires C , 74.7 ; H , 7.4 ; N , 5.5 % ) . cis ...
... containing less than 10 % of cis - isomer ( n.m.r. ) . trans - 1 - Ethyl - 4 - phthalimido- cyclohexane formed plates , m.p. 128-129 ° ( Found : C , 74.4 ; H , 7.4 ; N , 5.4 . C16H19NO , requires C , 74.7 ; H , 7.4 ; N , 5.5 % ) . cis ...
Page 1050
... containing 5 % of cis - amine ( n.m.r. ) . The N - salicylidene derivative had m.p. 129-130 ° ( lit , 18 130-133 ° ) . trans - 1 - t - Butyl - 4- phthalimidocyclohexane formed needles ( ethanol ) , m.p. 150- 152 ° ( Found : C , 75-4 ; H ...
... containing 5 % of cis - amine ( n.m.r. ) . The N - salicylidene derivative had m.p. 129-130 ° ( lit , 18 130-133 ° ) . trans - 1 - t - Butyl - 4- phthalimidocyclohexane formed needles ( ethanol ) , m.p. 150- 152 ° ( Found : C , 75-4 ; H ...
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