Quarterly Journal of the Chemical Society of London, Issue 1, Pages 1-776 |
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Page 33
... protons in piperidine derivatives has been determined by 220 MHz n.m.r. , and is discussed in relation to the modes of electron spin distribution through the o - skeleton . We have reported1 the relative paramagnetic shifts of 2 ...
... protons in piperidine derivatives has been determined by 220 MHz n.m.r. , and is discussed in relation to the modes of electron spin distribution through the o - skeleton . We have reported1 the relative paramagnetic shifts of 2 ...
Page 35
... protons attached to the tropane skeleton in ( III ) are magnetically different , on account of the presence of an asymmetric centre.3 The spectra were analysed on the basis of the coupling features and with the double resonance ...
... protons attached to the tropane skeleton in ( III ) are magnetically different , on account of the presence of an asymmetric centre.3 The spectra were analysed on the basis of the coupling features and with the double resonance ...
Page 321
... protons . † The following features are apparent : A signals of the aromatic ( I ) and the adjacent methylene protons ( II ) undergo the most pronounced upfield shifts , signal of the proton ( V ) on the carbon bearing the rized carboxyl ...
... protons . † The following features are apparent : A signals of the aromatic ( I ) and the adjacent methylene protons ( II ) undergo the most pronounced upfield shifts , signal of the proton ( V ) on the carbon bearing the rized carboxyl ...
Contents
Page | 1 |
Electrochemical Indications of New Oxidation States in Transitionmetal Dicarbollide Complexes | 8 |
Crystal Structure and Bonding in the Dinuclear Complexes CHW SPhMCO M Cr | 14 |
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acetate acid Acta adduct alcohol alkaloids alkyl Amer analysis anion aqueous aromatic assigned atoms band benzene carbon carbonyl cation chelate Chem chemical shifts Chemical Society Chim chloride cm-¹ co-ordination Comm complexes compounds configuration confirmed coupling Crystal Structure cyclopropane Department of Chemistry derivatives double bond doublet electron ester ether Figure formation formed gave H₂O hydride hydrogen hydrolysis i.r. spectrum ibid indicate Inorg intermediate irradiation isolated isomer ketone ligand metal methanol methyl methylene mixture molecular molecule n.m.r. spectrum nitrogen observed obtained olefinic oxidation oxygen phenyl phosphine photolysis Phys presence protons pyridine radical ratio reaction rearrangement Received reported resonance ring room temperature shown shows similar singlet sodium solution solvent space group spectra spectroscopy stereochemistry studies substituted suggested sulphur Summary synthesis Table Tetrahedron Letters tetrahydrofuran tion triphenylphosphine tritium University values X-ray yield