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 - CH ) Fe ( CO ) 2 ( OCMe2 ) ] + ( I ) only the co - ordinated acetone molecule is labile under mild con- ctions . We find that reactions of ( I ) with Ph2PCH , CH2- PF , ( diphos = L ...
... isolated by direct reaction with L - L . In [ ( π - CH ) Fe ( CO ) 2 ( OCMe2 ) ] + ( I ) only the co - ordinated acetone molecule is labile under mild con- ctions . We find that reactions of ( I ) with Ph2PCH , CH2- PF , ( diphos = L ...
Page 424
... isolated in 1949 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. , I ) ...
... isolated in 1949 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. , I ) ...
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