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101Author    W. Neuenhaus, H. Budzikiewicz, H. Korth, G. PulvererRequires cookie*
 Title    Bakterieninhaltsstoffe, III [1] 3-Alkyl-tetrahydrochinolinderivate aus Pseudomonas Bacterial Constituents, III [1] 3-Alkyl-tetrahydroquinoline Derivatives from Pseudomonas  
  Reference    Z. Naturforsch. 34b, 313—315 (1979); eingegangen am 18. September 1978 
  Published    1979 
  Keywords    Bacterial Constituents, Pseudomonas, Iron Defficiency Growth, Fluorescent Compounds, 3-Alkyl-3-hydroxy-2, 4-dioxo-l, 2, 3, 4-tetrahydroquinolines 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0313.pdf 
 Identifier    ZNB-1979-34b-0313 
 Volume    34 
102Author    Klaus-Wilhelm Stender, Günter Klar, Dierk KnittelRequires cookie*
 Title    Elektrochemisches Verhalten von Dibenzodichalkogeninen und verwandten Verbindungen Electrochemical Behavior of Dibenzodichalcogenins and Related Compounds  
  Reference    Z. Naturforsch. 40b, 774—781 (1985); eingegangen am 8. März 1985 
  Published    1985 
  Keywords    Thianthrenes, Selenanthrenes, 2, 2'-Dithiobiphenyls, Cyclic Voltammetry, 4, 4', 5, 5'-Tetramethoxy-2, 2'-dithiobiphenyl 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0774.pdf 
 Identifier    ZNB-1985-40b-0774 
 Volume    40 
103Author    D. Ieter Fenske, Christina Ergezinger, Kurt DehnickeRequires cookie*
 Title    Crystal Structure of l,l-D ichloro-3,5- diphenyl-4-H-l,2.4,6-/.4-selenatriazine, SeCl2C2N 3H (C 6H 5)2  
  Reference    Z. Naturforsch. 44b, 857—8 (1989); eingegangen am 15. Februar 1989 
  Published    1989 
  Keywords    1, l-D ichloro-3, 5-diph en yl-4-H -l, 2, 46-Ä4-selenatriazine, Preparation, Crystal Structure 
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 TEI-XML for    default:Reihe_B/44/ZNB-1989-44b-0857_n.pdf 
 Identifier    ZNB-1989-44b-0857_n 
 Volume    44 
104Author    Ulrich Fenner, Hans Pritzkow, W. Alter, Siebert, HerrnRequires cookie*
 Title    Synthese und Komplexierung des 4.5-Cycloocta-2,3-dihydro-l,2,3-trimethyl-l,3-diborols  
 Abstract    Synthesis and Complexation of 4 ,5 -C y c lo o c ta -2 ,3 -d ih y d r o -l,2 ,3 -tr im e th y l-l,3 -d ib o r o le Redox reactions of cyclooctyne and l,l-bis(diiodboryl)ethane lead to 4,5-cycloocta-2,3-dihydro-l,3-diiodo-2-methyl-l,3-diborole (la), which is methylated with AlMe3 to give 4.5-cycloocta-2,3-dihydro-l,2,3-trimethyl-l,3-diborole (lb). Complexation of lb with the complex fragments (C5H5)Co, (C8H12)Ni, (C5H5)Ni, and (OC)3Co leads to the corresponding metal complexes 2 b, 3 b, 4 b, and 5 b. Their constitutions are derived from spectroscopic data and confirmed for 2 b and 4 b by X-ray structure analyses. 2 b contains a C -H -B 3 c /2 e bond, its hydrogen atom could be located. [(C8H12)Ni(lb)] (3 b) is the first example for a (C8H 12)Ni complex having a C -H -B interaction. 2,3-Dihydro-l,3-diborole sind aufgrund ihrer Lewis-Acidität sowie des Donorcharakters der C = C-Doppelbindung hervorragend als Komplex­ liganden geeignet [1]. Dabei fungiert der H etero-cyclus als Vier-und nach Abspaltung des W asser­ stoffatoms an C 2 als D rei-Elektronen-Donor. Eine bifaciale Koordination des 1,3-Diborolyl-Liganden führt zu Zwei-und M ehrkernkomplexen [2, 3] mit Stapelanordnung [4]. Zur Herstellung von 2,3-Dihydro-l,3-diborol-Derivaten haben wir m ehrere Synthesewege entwickelt, wobei Redox-Reaktio-nen zwischen Alkinen und l,l-Bis(diiodboryl)alka-nen die zentrale Rolle bei der Entwicklung dieser Heterocyclen-Chemie spielten. Es zeigte sich, daß der erste Schritt in einer Iodoborierung des Alkins unter Bildung von cis-und frarcs-Addition verläuft. Nur das ds-Produkt ist für die Redox-Reaktion unter Eliminierung von Iod und Bildung einer Bor-Kohlenstoff-Bindung geeignet. Bei Verwendung von Cycloalkinen wie Cyclooctin ist ausschließlich die Bildung von a's-l-Iod-2-boryl-cycloocten zu er­ warten, deshalb sollte die Bildung des Diborols gün­ stig verlaufen. Wir berichten hier über die Synthe­ se des neuen bicyclischen 1,3-Diborols l b und des­ sen Ligandeneigenschaften. * Sonderdruckanforderungen an Prof. Dr. W. Siebert. 
  Reference    Z. Naturforsch. 49b, 315—320 (1994); eingegangen am 15. Oktober 1993 4. 
  Published    1994 
  Keywords    5-Cycloocta-2, 3-dihydro-l, 2, 3-trimethyl-l, 3-diboroles, Cyclopentadienylcobalt, Cyclooctadienenickel, Cyclopentadienylnickel, Tricarbonylcobalt Complexes 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0315.pdf 
 Identifier    ZNB-1994-49b-0315 
 Volume    49 
105Author    M. Sekar, S. Vanitha, K. J. Rajendra, PrasadRequires cookie*
 Title    Synthesis of Novel 3-Acetyl-2-hydroxy-l-N,N-diacetylaminocarbazole Derivatives  
 Abstract    The synthesis of hitherto unknown 3-acetyl-2-hydroxy-l-N,N-diacetylaminocarbazole (3a-f), is reported. The hydroxyiminocarbazoles (2a-f), prepared from 1-oxo-1,2,3,4-tetra-hydrocarbazoles (la -f) on treatment with acetyl chloride in acetic anhydride yielded the title compounds (3a-f). 
  Reference    Z. Naturforsch. 49b, 687—690 (1994); received June 7/August 31 1993 
  Published    1994 
  Keywords    l-Hydroxyimino-l, 2, 3, 4-tetrahydrocarbazoles, 3-Acetyl-2-hydroxy-l-N, N-diacetylaminocar-bazoles, Aromatization, Thermal Fries Rearrangement, Antimicrobial Activities 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0687.pdf 
 Identifier    ZNB-1994-49b-0687 
 Volume    49 
106Author    Z. NaturforschRequires cookie*
 Title    Elektronentransfer und Ionenpaar-Bildung  
 Abstract    , 47 [1] Titrationen von 1,2,4,5-Tetracyanbenzol und 7,7,8,8-Tetracyan-/;-chino-dimethan mit Natriummetall in aprotischen Lösungen E le ctro n T ran sfer an d Ion P air F o rm atio n , 47 [ 1 ] T itratio n s o f 1,2 ,4 ,5 -T etracy an o b en zen e and 7 ,7 ,8 ,8 -T etracy an o -/?-q u in o d im eth an e w ith S o d iu m M etal in A p ro tic S o lu tio n s H an s B ock*, M a rk u s K leine 
  Reference    Z. Naturforsch. 51b, 1215—1221 (1996); eingegangen am 25. Januar 1996 
  Published    1996 
  Keywords    1, 2, 4, 5-Tetracyanobenzene, 7, 7, 8, 8-Tetracyano-/?-quinodimethane, Sodium Metal Reduction, UV/VIS Spectra 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-1215.pdf 
 Identifier    ZNB-1996-51b-1215 
 Volume    51 
107Author    Ferdinand BelajRequires cookie*
 Title    Struktur von C2C16N4P2, dem R eaktionsprodukt von D icyandiam id mit PC15 Structure of C 2C16N4P2, the Reaction Product of Dicyandiamide with PC15  
 Abstract    The reaction product of dicyanodiamide with PC15 (1:2) is 2,2,4-trichloro-2,2-dihydro-6-trichlorophosphazeno-1.3,5,2A5-triazaphosphorine and not 2.4,6-trichloro-2,2-dihydro-2-trichlorophosphazeno-l,3,5,2A5-triazaphosphorine as reported in the literature. This is con­ firmed by an X-ray structure determination at 90K: Space group P 2,/c, a = 17.258(5), b = 9.664(3), c = 15.070(4) Ä, ß = 114.05(2)°, Z = 8, R = 3.99%. Both molecules of the asymmetric unit show about the same conformation with approximate C s-m -symmetry as was also obtai­ ned by semi-empirical MNDO calculations. The thermal motion analysis establishes that the molecules cannot be described as 'rigid bodies', and that the easy deformability of the exocyclic C-N-P angles allows the 'rigid' NPC13 tetrahedra to perform almost isotropic librations. 
  Reference    Z. Naturforsch. 51b, 1428—1432 (1996); eingegangen am 20. Februar 1996 
  Published    1996 
  Keywords    2, 24-Trichloro-2, 2-dihydro-6-trichlorophosphazeno-l, 3, 5, 2A5-triazaphosphorine Phosphaze­ ne, Crystal Structure, Thermal Motion Analysis 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-1428.pdf 
 Identifier    ZNB-1996-51b-1428 
 Volume    51 
108Author    T. Koch, W. PreetzRequires cookie*
 Title    Darstellung, n B-, 13C -,1 H-NMR-und Schwingungsspektren  
 Abstract    von 2,2' -Bipyridylundecahydro-c/oso-dodecaborat(1-) sowie Kristallstruktur von (Ph4As)[(2,2-C10H8N2)B12Hn ] CH3CN Synthesis, n B, 13C, 'H NMR and Vibrational Spectra of 2 ,2 '-Bipyridyl-undecahydro-c/o5o-dodecaborate(l-) and Crystal Structure of (Ph4As)[(2 ,2 '-C10H8N2)B 12H 1 1 ]-CH3CN 
  Reference    Z. Naturforsch. 52b, 1165—1168 (1997); eingegangen am 17. Juli 1997 
  Published    1997 
  Keywords    2, 2'-Bipyridyl-undecahydro-c/oso-dodecaborate(l-), Crystal Structure, n B NMR Spectra, 1H NMR Spectra, 13C NMR Spectra, Vibrational Spectra 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-1165.pdf 
 Identifier    ZNB-1997-52b-1165 
 Volume    52 
109Author    Z. NaturforschRequires cookie*
 Title    Ein weiteres 2A5,4A5-Diphosphapyridin: 2,2,4,4-Tetrakis-(dimethylamino)-6- amino-l-aza-2A5,4A5-diphosphinin  
 Abstract    A Further 2A5,4A5-Diphosphapyridine: 2,2,4,4-Tetrakis-(dimethylamino)-6-amino-1-aza-2A5,4A5-diphosphinine.-(dimethylamino)-6-amino-l-aza-2A5,4A5-diphosphinine (3) has been pre­ pared by reacting l,l,3,3-tetrakis(dim ethylam ino)-lA 5-3A:'-diphosphete (1) with bis(trimethyl-silyl)carbodiimide (2) in a 2 : 1 molar ratio. Properties, 'H, P, and l3C NMR, mass, and IR spectra are reported and discussed. Com pound 3 is further characterized by X-ray structure analysis. 
  Reference    Z. Naturforsch. 53b, 443—147 (1998); eingegangen am 12. Dezember 1997 
  Published    1998 
  Keywords    A5-Diphosphete, l-Aza-2A5, 4A5-diphosphinine, NMR Spectra, X-Ray Data 2, 2, 4, 4-Tetrakis 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0443.pdf 
 Identifier    ZNB-1998-53b-0443 
 Volume    53 
110Author    K. Shanm, K.J R Ajendra, PrasadRequires cookie*
 Title    Synthesis of 3-Phenylisoxazolo[3,4-a]carbazoles  
  Reference    Z. Naturforsch. 54b, 1202—1204 (1999); received April 19 1999 
  Published    1999 
  Keywords    l-Hydroxyimino-l, 2, 3, 4-tetrahydrocarbazoles, Claisen Aroylation, Aerial Oxidation, 3-Phenylisoxazolo[34-a]carbazoles 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1202.pdf 
 Identifier    ZNB-1999-54b-1202 
 Volume    54 
111Author    Eckhard Bast, F. Riedhelm, M. Arx, K. Onrad PfeilstickerRequires cookie*
 Title      
  Reference    Z. Naturforsch. 33c, 789 (1978); received July 6 1978 
  Published    1978 
  Keywords    Purple Sulfur Bacteria, Thiocapsa roseopersicina, Chroma-tium vinosum, Ascorbic Acid Catabolism, Erythroascorbic Acid, 2, 3-Enediol Pentonic Acid 
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 TEI-XML for    default:Reihe_C/33/ZNC-1978-33c-0789_n.pdf 
 Identifier    ZNC-1978-33c-0789_n 
 Volume    33 
112Author    Hans Rausch, GeorgG. GrossRequires cookie*
 Title    Preparation of [14C]-LabeIled l,2,3,4,6-Penta-0-Gal!oyl-/?-D-Glucose and Related Gallotannins  
 Abstract    [U -14C]-Labelled 1,2,3,4,6-penta-O-galloyl-ß-D-glucose was prepared by photoassimilation of 14C 0 2 with leaves from staghorn sumac (Rhus typhina) in the presence of the herbicide glyphosate. Extracts of the plant material were partitioned against ethyl acetate and chro­ matographed on Sephadex LH-20, yielding a series o f crude tri-to decagalloylglucoses. The pentagalloylglucose fraction among these was further purified by HPLC to >99% purity and a specific radioactivity of 130 kBq (3.5 fiCi) per fimol. The ratio of the radioactivities in the glucose and galloyl moieties, respectively, suggested a uniform labelling pattern of the product. 
  Reference    Z. Naturforsch. 51c, 473 (1996); received February 8/March 8 1996 
  Published    1996 
  Keywords    [I4C]l, 2, 3, 4, 6-Penta-0-galloyl-ß-D-glucopyranose, Gallotannins, Photosynthesis, Rhus typhina, Staghorn Sumac 
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 TEI-XML for    default:Reihe_C/51/ZNC-1996-51c-0473.pdf 
 Identifier    ZNC-1996-51c-0473 
 Volume    51 
113Author    Marianne Baudler, Anna Marx, Josef HahnRequires cookie*
 Title    Beiträge zur Chemie des Phosphors, 80 [1] Über die Phosphor-Bor-Dreiringverbindung (f-BuP)2BN(i-Pr)2 Contributions to the Chemistry of Phosphorus, 80 [1] About the Phosphorus Boron Three-Membered Ring Compound (£-BuP)2BN(i-Pr)2  
  Reference    Z. Naturforsch. 33b, 355—360 (1978); eingegangen am 18. Januar 1978 
  Published    1978 
  Keywords    l, 2-Di-£e^butyl-3-di-iso-propylamino-l, 2, 3-diphosphaborirane, Heterocyclophosphanes, Three-membered Ring Compounds, Cyclo-3-bora-l, 2-diphosphanes, Diphosphaboracyclopropanes 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0355.pdf 
 Identifier    ZNB-1978-33b-0355 
 Volume    33 
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