Quarterly Journal of the Chemical Society of London, Issue 15, Pages 777-1692 |
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Page 1092
... protons in meso- ( II ) must have the same chemical shift . Rare - earth chemical - shift reagents have recently been used to resolve the n.m.r. spectra of compounds containing unshared electron pairs , 3,4 and the CH , protons of meso ...
... protons in meso- ( II ) must have the same chemical shift . Rare - earth chemical - shift reagents have recently been used to resolve the n.m.r. spectra of compounds containing unshared electron pairs , 3,4 and the CH , protons of meso ...
Page 1156
... protons and Ha to the geminal protons of the indolylmethyl group , while the isopropyl group occupies the remaining position on the carbon bearing Hb . CH2 N H + ( I ) m / e 130 CH2 -e C11H16 N CHIGN + ( II ) m / e 120 m / e 162 ( base ...
... protons and Ha to the geminal protons of the indolylmethyl group , while the isopropyl group occupies the remaining position on the carbon bearing Hb . CH2 N H + ( I ) m / e 130 CH2 -e C11H16 N CHIGN + ( II ) m / e 120 m / e 162 ( base ...
Page 1172
... protons observed in the spectrum . + the values obtained for the protons of the NMe , group , the methylene chains , and the terminal methyl groups of the fatty acid residues for sonicated aqueous dispersions of dipalmitoyl lecithin ...
... protons observed in the spectrum . + the values obtained for the protons of the NMe , group , the methylene chains , and the terminal methyl groups of the fatty acid residues for sonicated aqueous dispersions of dipalmitoyl lecithin ...
Contents
11 August 1971 | 777 |
Electron Spin Resonance Studies of Stable Radicals Generated by Oxidation of sButyllithium with Transition | 878 |
O COPYRIGHT 1971 | 1044 |
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Common terms and phrases
absorption acetate acid Acta adduct alcohol alkaloids alkyl Amer angle anion aqueous aromatic atoms bands benzene carbon carbonyl catalyst cation CH₂ Chem chemical shifts Chemical Society Chim chloride cm-¹ co-ordination Comm complex compounds corresponding Crystal cyclic cyclopropyl D. H. R. BARTON Department of Chemistry derivatives deuterium dimethyl electron ester ether Figure formation formed gave give hydrogen hydrolysis i.r. spectrum ibid Inorg intermediate irradiation isolated isomer isomeric ketone ligand mechanism metal methanol methyl methylene mixture molecular molecule n.m.r. spectrum nitrogen nucleophilic observed obtained olefin orbitals oxidation oxygen Ph Ph phenyl phosphine photolysis Phys presence protons pyridine radical ratio react reaction rearrangement Received reduction reported resonance ring room temperature shown singlet sodium solution solvent species spectra spectroscopy stereochemistry structure studies substituted Summary synthesis Table Tetrahedron Letters thermal University X-ray yield