Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 386
... resonances of substituted acetamides relative to the t - butylammonium resonance - 10 , -3 * The group whose resonances are reported is italicised . TABLE 2 Chemical shifts ( in Hz ) caused by protonation of the a - CH and N - Me resonances ...
... resonances of substituted acetamides relative to the t - butylammonium resonance - 10 , -3 * The group whose resonances are reported is italicised . TABLE 2 Chemical shifts ( in Hz ) caused by protonation of the a - CH and N - Me resonances ...
Page 511
... resonance experi- ments can be interpreted with the aid of a first - order assign- ment of the transitions . In the double resonance experi- ments involving either observation or irradiation of the ortho- or meta - fluorine nuclei ...
... resonance experi- ments can be interpreted with the aid of a first - order assign- ment of the transitions . In the double resonance experi- ments involving either observation or irradiation of the ortho- or meta - fluorine nuclei ...
Page 512
... resonance experiments were frustrated by the small value of J ( 3 - CH , ) . The moduli of J ( 2 - CH3 ) and J ( 4 - CH , ) were obtained directly from the proton spectrum of C.F , CH ,, but J ( 3 - CH ) was unresolved . The magnitude ...
... resonance experiments were frustrated by the small value of J ( 3 - CH , ) . The moduli of J ( 2 - CH3 ) and J ( 4 - CH , ) were obtained directly from the proton spectrum of C.F , CH ,, but J ( 3 - CH ) was unresolved . The magnitude ...
Contents
Physical organic chemistry | 1 |
Aromatic reactivity Part XXXVIII Protodesilylation of 12dihydrobenzocyclobutene indan and tetralin | 12 |
Aromatic reactivity Part XL Additional substituent effects in protodetrimethylsilylation | 21 |
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absorption acetic acid Acta alcohol alkyl Amer amine angles anion aqueous aromatic ation benzene bond bromide calculated carbanion carbon tetrachloride CH₂ Chem chemical shifts Chemistry Chim chloride CO₂H compounds concentration conformation corresponding coupling constants decomposition derived di-imine dioxan dipole effect electron equation esters ethanol ether experimental Figure first-order formation formed H₂O hydrogen hydrolysis hydroxide hypochlorous acid interaction intermediate iodide irradiation isomer isomerisation isopropyl k₁ ketone kinetic measured mercuric mesitylene method methyl mixture mole mole-¹ molecular molecule n.m.r. spectra nitration nitrogen observed obtained olefin oxidation oxygen peaks peroxide phenyl Phys plot polymer proton radical rate constants ratio reactants reaction reactivity reduced relative resonance ring salts showed shown similar singlet sodium sodium hydroxide solution solvent solvolysis spectrum steric steric effect structure substituent sulphoxide t-butyl Table temperature titanium(III triethyl phosphite values