Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 104
... shifts [ and J ( 13CH ) ] could be obtained . 6 ( p.p.m. ) -10 -15 -20 -25 n FIGURE 1 Carbonyl 13C chemical shifts vs. number of a - protons for aliphatic ketones The average shielding for the carbon atoms for each type of substitution ...
... shifts [ and J ( 13CH ) ] could be obtained . 6 ( p.p.m. ) -10 -15 -20 -25 n FIGURE 1 Carbonyl 13C chemical shifts vs. number of a - protons for aliphatic ketones The average shielding for the carbon atoms for each type of substitution ...
Page 593
... shifts . Anderson and Symons 6 obtained a good cor- relation between Z and internal shifts of the 2,6- and 3,5 - protons of 1,4 - diethylpyridinium salts for protic solvents , certain aprotic solvents giving anomalous results . We now ...
... shifts . Anderson and Symons 6 obtained a good cor- relation between Z and internal shifts of the 2,6- and 3,5 - protons of 1,4 - diethylpyridinium salts for protic solvents , certain aprotic solvents giving anomalous results . We now ...
Page 956
... Shifts in 4,4 ' - Disub- stituted 2,2 ' , 6,6 ' - Tetramethylbiphenyls and Related Compounds By Yujiro Nomura and Yoshito Takeuchi , * Department of Chemistry , College of General Education , University of Tokyo , Komaba , Meguro - ku ...
... Shifts in 4,4 ' - Disub- stituted 2,2 ' , 6,6 ' - Tetramethylbiphenyls and Related Compounds By Yujiro Nomura and Yoshito Takeuchi , * Department of Chemistry , College of General Education , University of Tokyo , Komaba , Meguro - ku ...
Contents
Physical organic chemistry | 1 |
Topochemistry Part XXX Crystal and molecular structures of chalcone | 11 |
Conformational studies Part I Crystal and molecular structures of cis12dipchlorobenzoyl and cis | 17 |
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A. R. Katritzky alcohol alkyl Amer anion aqueous aromatic ation axial benzene bond bromination calculated carbanion carbon acids carbon atom carbon tetrachloride carbonyl catalyst Chem chemical shifts Chemistry chloride complex compounds concentration conformation correlation coupling constants crystal cyclohexane derivatives difference dilute dimethyl sulphoxide dioxan electron elimination energy equation equatorial equilibrium ester ethanol ether experimental Figure fluorene formation fraction H₂O H₂SO hydrogen hydrolysis hydroxide indicators interaction intermediate ionisation isomer isomerization isotope effect k₁ k₂ kcal kcal./mole kinetic measured mechanism methyl mixture mole mole-¹ molecular molecule n.m.r. spectra nitration nitrogen nucleophilic observed obtained oxide oxime oxygen parameters phenyl Phys piperidine plot proton pyridines R. P. Bell radical rate constants ratio reaction reactivity ring shown shows sodium solution solvent spectrum structure substituents sulphuric acid t-butyl Table temperature Tetrahedron thiophen transition values