Quarterly Journal of the Chemical Society of London, Issue 1, Pages 1-776 |
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Page 304
... isolated from Streptomyces venezuelae MCRL 0376 and shown to be an aglycone of narbomycin ( 2 ) biologically convertible into picromycin ( 3 ) via narbom- ycin . To isolate narbonolide , sodium acetate was added to a culture medium ...
... isolated from Streptomyces venezuelae MCRL 0376 and shown to be an aglycone of narbomycin ( 2 ) biologically convertible into picromycin ( 3 ) via narbom- ycin . To isolate narbonolide , sodium acetate was added to a culture medium ...
Page 309
... isolated by direct reaction with L - L . In [ ( π - C , H ) Fe ( CO ) 2 ( OCMe ) ] + ( I ) only the co - ordinated acetone molecule is labile under mild con- ¿ tions . We find that reactions of ( I ) with Ph2PCH2 · CH2- PP , ( diphos ...
... isolated by direct reaction with L - L . In [ ( π - C , H ) Fe ( CO ) 2 ( OCMe ) ] + ( I ) only the co - ordinated acetone molecule is labile under mild con- ¿ tions . We find that reactions of ( I ) with Ph2PCH2 · CH2- PP , ( diphos ...
Page 424
... isolated in 19497 from a bicar- bonate extract of the leaves of Cassia reticulata Willdenow . This same compound has also been isolated from Cassia alata.8 To our knowledge this is the first time that one and the same xanthone ( i.e. ...
... isolated in 19497 from a bicar- bonate extract of the leaves of Cassia reticulata Willdenow . This same compound has also been isolated from Cassia alata.8 To our knowledge this is the first time that one and the same xanthone ( i.e. ...
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