Quarterly Journal of the Chemical Society of London, Issue 1, Pages 1-776 |
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Page 86
The proton dynamic n.m.r. of the isopropyl methyl groups of Al ( dibm ) , in PhCl with temperature . Concentration , 0.294 м ; frequency , 60 MHz . the coalescence temperature , ‡ 120 ° , AG ‡ , of 21.8 kcal ...
The proton dynamic n.m.r. of the isopropyl methyl groups of Al ( dibm ) , in PhCl with temperature . Concentration , 0.294 м ; frequency , 60 MHz . the coalescence temperature , ‡ 120 ° , AG ‡ , of 21.8 kcal ...
Page 241
A Synthesis of 2 - O - Methyl - L - lyxose : a Component of Everninomicin B and D By J. S. BRIMACOMBE * and A. M. MOFTI ( Chemistry Department , The University , Dundee DD1 4HN ) • Al crystalline compounds gave satisfactory ...
A Synthesis of 2 - O - Methyl - L - lyxose : a Component of Everninomicin B and D By J. S. BRIMACOMBE * and A. M. MOFTI ( Chemistry Department , The University , Dundee DD1 4HN ) • Al crystalline compounds gave satisfactory ...
Page 250
This methylsulphonyl compound , with methanolic sodium methoxide , gave 80 % of 2 - methoxy - 7 - methyl - 8- azapurin - 6 - one ( IId ) , m.p. 227 ° from methanol , whereas with ethanolic ammonia at 160 ° it produced 85 % of 2- amino ...
This methylsulphonyl compound , with methanolic sodium methoxide , gave 80 % of 2 - methoxy - 7 - methyl - 8- azapurin - 6 - one ( IId ) , m.p. 227 ° from methanol , whereas with ethanolic ammonia at 160 ° it produced 85 % of 2- amino ...
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Contents
Page | 1 |
Electrochemical Indications of New Oxidation States in Transitionmetal Dicarbollide Complexes | 8 |
Synthesis of a 1026Pyridinophane by U K GEORGI and J RÉTEY | 32 |
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acetate acid addition alcohol Amer analysis appears aromatic assigned atoms band bond calculated carbon carbonyl Chem Chemical Chemistry chloride chromatography co-ordination Comm complexes compounds concentration configuration confirmed consistent constants containing corresponding coupling Crystal Department of Chemistry derivatives determined effect electron ester ether evidence expected experiments Figure followed formation formed gave give hydrogen indicate intermediate involving isolated ligand mass measured mechanism metal method methyl mixture molecular molecule n.m.r. spectrum nitrogen observed obtained occurs oxidation oxygen peak position possible prepared presence protons radical ratio reaction rearrangement Received recently reduction relative reported Research resonance respectively ring Scheme shift shown shows signals similar solution solvent space group spectra spectrum structure studies substituted suggested Summary synthesis Table temperature Tetrahedron Letters thank tion University values X-ray yield