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'Structure Elucidation' in keywords Facet   section ZfN Section B  [X]
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1Author    D. Dill, H. Eckau, H. BudzikiewiczRequires cookie*
 Title    Neuartige Cerebroside aus Cystobacter fuscus (Myxobacterales) [1] Novel Cerebrosides from Cystobacter fuscus (Myxobacterales) [1]  
 Abstract    From the cell material of Cystobacter fuscus (Myxobacterales) the cerebroside l-0-/3-D-galacto-pyranosyl-N-(2R-hydroxy-15-methylpalmitoyl)-17-methylsphinga-4E,8E-dienin (main compo­ nent) and three related compounds could be isolated, the structure elucidation of which is being reported here. 
  Reference    Z. Naturforsch. 40b, 1738—1746 (1985); eingegangen am 6. Mai 1985 
  Published    1985 
  Keywords    Cystobacter, Myxobacterales, Cerebrosides, Structure Elucidation 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-1738.pdf 
 Identifier    ZNB-1985-40b-1738 
 Volume    40 
2Author    G. Falsone, F. Cateni, F. Katusian, H. Wagner, O. SeligmannRequires cookie*
 Title    Constituents of Euphorbiaceae, 10. Conun. [1] New Cerebrosides from Euphorbia characias L  
 Abstract    G . P ellizer and F. A sa r o D epartm ent o f Chemical Sciences, U niversity o f Trieste, V ia L. Giorgieri 1 Four new cerebrosides C -l-C -4 were isolated from the latex o f Euphorbia characias L. On the basis o f spectral evidences and chem ical reactions they were characterized as (2 S , 3 S , 4 R , 5 R , 6Z)-l-0-(/?-D -glu cop yran osyl)-2N -[(2'R)-2'-h yd roxy-(15'Z)-tetracose-noyl]-6(Z)-octadecene-l,3,4,5-tetraol-2-am ino (C -l), (2 S , 3 S , 4 R , 5 R, 6 Z)-l-0 -(/? -D -g lu co -p y ra n o sy l)-2 N -[(2 'R)-2 'h y d ro x y -(1 7 'Z)-h ex a c o sen o y l]-6 (Z)-o c ta d e c en e-l,3 ,4 ,5 -te tr a o l-2-am ino(C -2),(2S, 3S , 4 R , 5 R, 6Z)-l-0-(/3-D -glucopyranosyl)-2N -[(2'R)-2'-hydroxy-(19'Z)-octacosenoyl]-6-(Z)-octadecene-l,3,4,5-tetraol-2-am ino (C -3) and (2S , 3 S, 4 R , 5 R, 6 Z)-l-0 -(/?-D -glu cop yran o sy l)-2 N -[(2 'R)-2 '-h y d ro x y -o cta co sa n o y l]-6 -(Z)-o cta d ecen e-l, 3,4,5-tetraol-2-amino (C-4). Reversed phase colum n flash chromatography was effective for the isolation of the cere­ brosides. FA B -M S spectrometry, X H N M R , 13C N M R analysis and chemical reactions were useful in providing information for the structure elucidation. 
  Reference    Z. Naturforsch. 48b, 1121 (1993); received March 2 1 9 9 3 
  Published    1993 
  Keywords    Euphorbiaceae, C erebrosides, Structure Elucidation 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1121.pdf 
 Identifier    ZNB-1993-48b-1121 
 Volume    48 
3Author    O. Tto, O. Lfb, Onowara Begum2, Hans GeigerbRequires cookie*
 Title    Fluorescence Properties of Hydroxy-and Methoxyflavones and the Effect of Shift Reagents  
 Abstract    The fluorescence spectra o f 42 hydroxy-and m ethoxyflavones in m ethanol solution have been investigated. The follow ing findings are considered to be useful in structure elucidation and identification o f flavonoids: (a) The maxima of the absorption and fluorescence bands give, in m ost cases, a unique combination; (b) flavones exhibit exceptionally large Stok es' shifts (6,800 to 
  Reference    Z. Naturforsch. 39b, 231 (1984); received Septem ber 23 1983 
  Published    1984 
  Keywords    Flavonoids, F luorescence, Structure Elucidation, Shift Reagents 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0231.pdf 
 Identifier    ZNB-1984-39b-0231 
 Volume    39 
4Author    Atta-Ur -Rahman, S. Farhi, G. A. Miana, Mehrun Nisa, H.E J, Wolfgang VoelterRequires cookie*
 Title    The Isolation and Structure of Papilamine, a New Alkaloid from Buxus papilosa  
 Abstract    A new alkaloid, papilamine, has been isolated from the leaves of Buxus papilosa to which the structure 1 has been assigned on the basis of chemi-cal and spectroscopic studies. 
  Reference    Z. Naturforsch. 40b, 567—568 (1985); received June 28 1984 
  Published    1985 
  Keywords    Steroidal Alkaloids, Buxus papilosa, Structure Elucidation, Febrifuge, Rheumatism 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0567_n.pdf 
 Identifier    ZNB-1985-40b-0567_n 
 Volume    40 
5Author    J. Stein, H. BudzikiewiczRequires cookie*
 Title    l-0-(13-Methyl-l-Z-tetradecenyl)-2-0-(13-methyItetradecanoyl)- glycero-3  
 Abstract    phospho-ethanolamin, ein Plasmalogen aus Myxococcus stipitatus [1] l-0-(13-M ethyl-l-Z-tetradecenyl)-2-0-(13-m ethyltetradecanoyl)-glycero-3-phospho-ethanolam ine, a Plasmalogen from M yxococcus stipitatus [1] The structure of l-0-(13-m ethyl-l-Z -tetradecenyl)-2-0-(13-m ethyltetradecanoyl)-glycero-3-phospho-ethanolamine isolated from Myxococcus stipitatus has been elucidated. 'H and 13C NMR as well as mass spectral data have been accum ulated which allow a ready identification and structure elucidation of compounds of this type. 
  Reference    Z. Naturforsch. 42b, 1017—1020 (1987); eingegangen am 25. März 1987 
  Published    1987 
  Keywords    Myxobacteria, Myxococcus stipitatus, Phospholipids, Plasmalogen, Structure Elucidation 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-1017.pdf 
 Identifier    ZNB-1987-42b-1017 
 Volume    42 
6Author    G. M. Ohn, K. Taraz, H. Budzikiewicz, FrauM. Prof, BäudlerRequires cookie*
 Title    New Pyoverdin-Type Siderophores from Pseudomonas fluorescens [1]  
 Abstract    The structures o f two new pyoverdins (G M -I and G M -II) isolated from the culture medium of Pseudomonas fluorescens have been elucidated by spectroscopic methods and degradation studies. The pyoverdins consist o f a chrom ophore which could be identified as (1 S)-5-amino-2,3-dihydro-8,9-dihydroxy-1 H -pyrim ido[l,2-a]quinoline-l-carboxylic acid substituted at the amino group with a 3-carboxypropanoyl or a succinamoyl residue and at the carboxy group with the N-terminus o f D -A l a -D -L y s —G l y -G ly -D -t h r e o -(O H) A s p -D -G lu -D -S e r — L -A l a -D -A l a -D -A l a -L -A l a -L -N 5-(O H)O rn . According to the "short-hand" nomenclature proposed in [2]*** the two com pounds should be characterized as pyoverdin-Q-akG Gd'qsAaaAO '*-SUCA and pyoverdin-Q-akGG d'qsAaaAO '*-SUC. 
  Reference    Z. Naturforsch. 45b, 1437—1450 (1990); received April 26 1990 
  Published    1990 
  Keywords    Pseudomonas fluorescens, Pyoverdins, Siderophores, Structure Elucidation 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1437.pdf 
 Identifier    ZNB-1990-45b-1437 
 Volume    45 
7Author    Viqar Uddin, Ahmad, ZulfiqarA. Li3, Muhammad Shaiq, A. Li3, Fazila Iqbal3, Muhammad Zahid3, RasoolBakhsh Tareenb, H.E JRequires cookie*
 Title    Two New Aromatic Constituents from Stocksia brahuica  
 Abstract    The methanolic extract of Stocksia brahuica yielded two new aromatic constituents: diphe­ nylacetic acid and brahene (2',4'-dihydroxy-7-methoxy-4,5-methylenedioxyisoflavene). Their structures were characterized with the help of modern spectroscopic techniques including 2D-NMR. 
  Reference    Z. Naturforsch. 54b, 940—942 (1999); received January 2 1999 
  Published    1999 
  Keywords    Diphenylacetic Acid, Brahene, Sapindaceae, Stocksia brahuica, Structure Elucidation 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0940.pdf 
 Identifier    ZNB-1999-54b-0940 
 Volume    54 
8Author    Joachim Heinickea, Attila Dala, Hans-Friedrich Kleinb, Olaf Hetcheb, Ulrich Flörkec, Hans-Jürgen HauptcRequires cookie*
 Title    Formation of r71-P-(2-Phosphinophenol)Ni(0)(PMe3)3 and Oxidation to cjs/fraws-Bis(2-phosphinophenolato)nickel(II) Complexes  
 Abstract    o-Phosphinophenols 1 (P ^ O H) react with equimolar amounts of Ni(PMe3)4 at low tempera­ tures to give yellow Ni(0) complexes such as [(HO~P)Ni(PMe3)3] 2a with only P coordination of the P ^ O H ligand. Oxidation of solutions of 1 and Ni(PMe3)4 by dioxygen leads to brown bis(o-phosphinophenolato-P^O)nickel chelate complexes 3a-d. Structure elucidation by NM R is consistent with a m-square planar geometry for 3a-c and a rrans-square planar solution struc­ ture of the terr-butylphenylphosphino derivative 3d. The geometric isomers were distinguished by different ranges of phosphorus coordination shifts and 3lP-l3C-2 and 3IP-13C-1 coupling 
  Reference    Z. Naturforsch. 54b, 1235—1243 (1999); received May 19 1999 
  Published    1999 
  Keywords    Phosphinophenolate, Nickel, Complexes, Structure Elucidation, Solid State Structures 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1235.pdf 
 Identifier    ZNB-1999-54b-1235 
 Volume    54 
9Author    H.E JRequires cookie*
 Title    A tta-ur-Rahm an*, M ehrun Nisa, and Talat Zamir  
 Abstract    A new alkaloid, "papilicine", has been isolated from the leaves of Buxus papilosa to which structure (1) has been assigned on the basis of spectroscopic studies. Buxus species have been used in the indigenous system of medicine as febrifuge, for relief of rheumatism and for the treatm ent of a num ber of other ailments. Buxus papilosa C. K. Schn., Linn. 
  Reference    (Z. Naturforsch. 39b, 127—128 [1984]; received March 23 1983) 
  Published    1984 
  Keywords    Buxus papilosa, Alkaloids, Structure Elucidation, NMR Spectra, Mass Spectra 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0127_n.pdf 
 Identifier    ZNB-1984-39b-0127_n 
 Volume    39 
10Author    Atta-Ur -Rahman, Mehrun Nisa, Talat Zamir, H.E J, Wolfgang VoelterRequires cookie*
 Title    The Isolation and Structure of "Papilinine" a New Alkaloid from Buxus papilosa  
 Abstract    A new alkaloid "Papilinine" has been isolated from the leaves of Buxus papilosa to which structure 1 has been assigned. 
  Reference    Z. Naturforsch. 40b, 565—566 (1985); received June 28 1984 
  Published    1985 
  Keywords    Buxus papilosa, Steroidal Alkaloids, Structure Elucidation, NMR Spectra, Mass Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0565_n.pdf 
 Identifier    ZNB-1985-40b-0565_n 
 Volume    40 
11Author    ViqarUddin Ahmad, Q. Najmus-Saqib, K. Usmanghani, W. Fuchs, W. VoelterRequires cookie*
 Title    New Triterpenoid from Primula denticulata  
 Abstract    From the alcoholic extract of the plant Primula denticulata four main compounds could be isolated by column chromatography: Pri-dentigenin A, B, C and D. Several spectroscopic methods and the synthesis of several derivatives allow to determine the structure of Pridenti-genin B. 
  Reference    Z. Naturforsch. 35b, 511—512 (1980); eingegangen am 27. Dezember 1979 
  Published    1980 
  Keywords    Triterpenoids, Primula denticulata, Structure Elucidation, X H NMR Spectra, 13 C NMR Spectra 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0511_n.pdf 
 Identifier    ZNB-1980-35b-0511_n 
 Volume    35 
12Author    M. Uhammad, Shaiq Ali, Muhammad Saleem, Viqar Uddin, H.E JRequires cookie*
 Title    Zatatriol: A New Aromatic Constituent from Zataria multiflora Ahm ad  
 Abstract    A new isopropyl benzene derivative named as zatatriol (5) and two synthetically known compounds (2 and 7) having the same skeleton have been isolated from the hexane soluble part of a Lamiaceous plant Zataria multiflora. In addition to 2, 5 and 7, som e known constitu­ ents: p-cym ene (1), thymol (3), thymol methyl-ether (4) , /3-sitosterol, stigmasterol, oleanolic acid, betulinic acid, and hexadecanoic acid have also been isolated from the same source. Structures of the isolated constituents were elucidated with the aid of NM R spectroscopy. 
  Reference    Z. Naturforsch. 54b, 807 (1999); received July 22 1998 
  Published    1999 
  Keywords    Lamiaceae, Zataria multiflora, Isopropyl Benzene Constituents, Structure Elucidation, N M R Data 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0807.pdf 
 Identifier    ZNB-1999-54b-0807 
 Volume    54