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41Author    Mathias Noltemeyer, GeorgeM. Sheldrick, Carl Habben, Anton MeilerRequires cookie*
 Title    Reaktionen von Mehrfachbindungssystemen mit dem 1.2.4-Trithia-3.5-diborolan-Ring -Eine strukturelle Richtigstellung Reactions of Multiple-Bond-Systems with the l,2,4-Trithia-3,5-diborolane Ring - A Structural Correction-Dithia-3-bora-4-azacyclopentanones-(5) and -thiones-(5), Crystal Structure  
  Reference    Z. Naturforsch. 38b, 1182—1191 (1983); eingegangen am 6. Juli 1983 
  Published    1983 
  Keywords    1, 2, 3-Dithiaboroles, 1, 3, 2-Dithiaboroles, l, 2 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1182.pdf 
 Identifier    ZNB-1983-38b-1182 
 Volume    38 
42Author    Gernot Heckmann, Ekkehard Fluck, Peter KuhmRequires cookie*
 Title    A [l,3,4]Thiazaphospholidine, Preparation and NMR Data  
 Abstract    Preparation and properties of a [l,3,4]thiaza-phospholidine are described. The 31 P. 13 C and 'H NMR spectra in double and triple resonance mode are recorded and discussed in detail. 
  Reference    (Z. Naturforsch. 42b, 115—117 [1987]; eingegangen am 29. August 1986) 
  Published    1987 
  Keywords    [l, 3, 4]Thiazaphospholidine, NMR Spectra, Triple Resonance 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0115_n.pdf 
 Identifier    ZNB-1987-42b-0115_n 
 Volume    42 
43Author    ShyamK. Singh, LindsayA. Summers, LarryA. HickRequires cookie*
 Title    Synthesis of Quaternary Salts from 3,3 -Bipyridine and Dibromoalkanes  
 Abstract    Reaction of 3,3'-bipyridine with 1,3-dibromopropane, 1,4-dibromobutane, 1.5-dibromo-pentane, 1,6-dibromohexane. 1,7-dibromoheptane and 1.8-dibromooctane affords the correspond-ing bridged diquaternary salts, the structures of which were confirmed by fast atom bombardment mass spectrometry. Reaction with 1,2-bromoethane gives instead l.l"-(1,2-ethanediyl)-bis-3.3'-bipyridinium dibromide. 
  Reference    Z. Naturforsch. 43b, 778—784 (1988); received November 12. 1987 
  Published    1988 
  Keywords    3, 3'-Bipyridinium Quaternary Salts, Fast Atom Bombardment Mass Spectra, Reduction Potentials 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0778.pdf 
 Identifier    ZNB-1988-43b-0778 
 Volume    43 
44Author    N. Orbert, K. Uhna, Michael Schulten3, Roland Boeseb, Dieter BläserbRequires cookie*
 Title    Synthese und Struktur von l,3?6,8-Tetra-terf-butylcarbazol  
 Abstract    The synthesis o f 1,3,6,8-tetra-/er/-butylcarbazole (2) by the reaction o f carbazole with tert-butyl chloride in the presence o f aluminium chloride is reported. The X-ray structures o f 2 and its diethyl ether adduct are compared. The gap formed by the ter/-butyl groups in 1,8-position has been calculated and compared with that o f the supermesithyl substituent. 
  Reference    Z. Naturforsch. 46b, 1503—1508 (1991); eingegangen am 4. April 1991 
  Published    1991 
  Keywords    l, 3, 6, 8-Tetra-?m -butylcarbazole, Synthesis, X-Ray 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1503.pdf 
 Identifier    ZNB-1991-46b-1503 
 Volume    46 
45Author    Requires cookie*
 Title    Darstellung und Kristallstruktur von 2  
  Reference    (Z. Naturforsch. 47b, 1 [1992]) 
  Published    1992 
  Keywords    4, 6-Triferrocenyl-1, 3, 5, 2, 4, 6-triselenatriborinan 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0001.pdf 
 Identifier    ZNB-1992-47b-0001 
 Volume    47 
46Author    K. Arl Hensen, PeterW. Ag, N. Er+Requires cookie*
 Title    Die Kristallstruktur der Verbindung N-Trimethylsilyl-3,4-Dimethylpyridiniumbromid The C rystal Structure o f N -T rim ethylsilyl-3,4-dim ethylpyridinium Brom ide  
 Abstract    Trimethylbromosilane and 3,4-lutidine form a 1:1 com pound which is stable at room tem­ perature. Single crystals of this com pound can be isolated by sublimation. It crystallizes in the orthorhom bic space group P 2,2,2, with lattice constants a = 737,08(9) pm, b = 1295,7(1) pm, c = 1318,8(3) pm. The crystal structure was refined to Rw = 0,042 and proves an ionic struc­ ture. 
  Reference    (Z. Naturforsch. 48b, 79—81 [1993]; eingegangen am 21. Februar 1992) 
  Published    1993 
  Keywords    Trimethylbromosilane, 3, 4-Dimethylpyridine, Addition Com pound, Crystal Structure 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0079.pdf 
 Identifier    ZNB-1993-48b-0079 
 Volume    48 
47Author    Koshi Saito, Atsushi Komamine, Siro SenohRequires cookie*
 Title    Further Studies on the Biosynthesis of Stizolobinic Acid and Stizolobic Acid in the Etiolated Seedlings of Stizolobium hassjoo  
 Abstract    Incorporation of doubly labelled tyrosine into stizolobinic acid and stizolobic acid by the etio­ lated seedlings of Stizolobium hassjoo was studied. The retention of tritium activity in stizolobinic acid was 55%, while that in stizolobic acid was only 4.4% in average. The results strongly suggest that the heterocyclic rings of these two amino acids may be derived from 3,4-dihydroxyphenyl-alanine (DOPA) by extradiol cleavage of the aromatic ring. 
  Reference    (Z. Naturforsch. 31c, 15 [1976]; received September 1 1975) 
  Published    1976 
  Keywords    Stizolobium hassjoo, Biosynthesis, Stizolobinic Acid, Stizolobic Acid, 3, 4-Dihydroxyphenylalanine 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0015.pdf 
 Identifier    ZNC-1976-31c-0015 
 Volume    31 
48Author    D. Ietrich, Bäum Er, HansG. Eorg RuppelRequires cookie*
 Title    Phenolic Constituents of Galactites tomentosa (Asteraceae)  
 Abstract    The A steracea Galactites tomentosa. known as a plant causing allergic contact reactions, was investigated for new constituents in leaves and stems. Chlorogenic acid and 3,5-dicaf-feoylquinic acid could be detected by H P LC in tissues and trichome preparations as well. 
  Reference    Z. Naturforsch. 51c, 623 (1996); received May 31/June 20 1996 
  Published    1996 
  Keywords    Allergie Contact Reactions, Galactites tomentosa, Chlorogenic Acid, 3, 5-Dicaffeoylquinic Acid 
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 TEI-XML for    default:Reihe_C/51/ZNC-1996-51c-0623.pdf 
 Identifier    ZNC-1996-51c-0623 
 Volume    51 
49Author    Wolfram Bodenmüller, Andreas Ruoff, Laurent ManceronRequires cookie*
 Title    FTIR Study of the v 12 and the v 12 + v 14 — v 14 Bands of 1,3,5-Triazine Near 740 cm -1  
 Abstract    The infrared spectrum of the v 12 fundamental and its accompanying hot band v 12 + v 14 — v 14 of triazine has been measured by means of a Fourier transform spectrometer with a resolution of about 0.0023 cm" 1 . A total of about 2779 rovibrational transitions has been assigned. The ground state constants have been considerably improved whilst the parameters for the excited states tf 12 =l, i; 14 = l and tf 12 =i> 14 = l have been obtained for the first time. The standard deviations were 2.92 • 10" 4 cm" 1 for the ground state constants and 1.53 • 10" 4 cm 1 for the excited state parame-ters of v 12 showing the latter to be unperturbed. The upper state of the hot band v 12 + v 14 — v 14 was found to be perturbed by an accidental resonance. 
  Reference    Z. Naturforsch. 47a, 1197—1203 (1992); received October 20 1992 
  Published    1992 
  Keywords    1, 3, 5-triazine, High resolution FTIR spectroscopy, Ground state constants Funda-mental constants, Hot band constants 
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 TEI-XML for    default:Reihe_A/47/ZNA-1992-47a-1197.pdf 
 Identifier    ZNA-1992-47a-1197 
 Volume    47 
50Author    W. Bodenmüller, M. Pfeffer, R. Ruber, B. Macht, A. RuoffRequires cookie*
 Title    High Resolution FTIR Spectroscopy of 1,3>5-Triazine*: The Parallel Bands v n and v 12 of 12 C 3 14 N 3 H 3 , 13 C 3 14 N 3 H 3 , 12 C 3 15 N 3 H 3 , 13 C 3 15 N 3 H 3 and 12 C 3 14 N 3 D 3  
 Abstract    The present contribution reports on the analysis of the high resolution FTIR spectra of the only two IR-active parallel fundamentals v u and v 12 of the isotopomers 12 C 3 14 N 3 H 3 , 13 C 3 14 N 3 H 3 , 12 C 3 15 N 3 H 3 , C 3 15 N 3 H 3 and 12 C 3 14 N 3 D 3 , respectively, of 1,3,5-triazine. The molecular con-stants of the ground state and the upper states u u = l and v l2 = \, respectively, for all molecules under consideration are listed. The enhancement of the P-and the depletion of the R-banches, observed in the v n bands of all non-deuterated isotopomers, is discussed, and the Herman-Wallis constants obtained are given. 
  Reference    Z. Naturforsch. 53a, 1 (1998); received December 10 1997 
  Published    1998 
  Keywords    High Resolution FTIR Spectroscopy, 1, 3, 5-Triazine, Parallel Band, Herman-Wallis Constants 
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 TEI-XML for    default:Reihe_A/53/ZNA-1998-53a-0001.pdf 
 Identifier    ZNA-1998-53a-0001 
 Volume    53 
51Author    Requires cookie*
 Abstract    M alco lm B id d l e st o n e a n d R o b e rt A. S h a w D epartm ent The title compound was synthesized and its structure determined by X -ra y crystallo­ graphy. The NPPI13 substituent adopts a type I conformation with its nitrogen and phosphorus atom s coplanar w ith the ring. The compound, the first asymm etric 1,3,5-triazine to be crystallographically investi­ gated, shows significant variations in ring bond lengths and angles; these are discussed. 
  Reference    (Z. Naturforsch. 30b, 973—974 [1975]; received August 4 1975) 
  Published    1975 
  Keywords    Asym m etric 1, 3, 5-Triazine, X -ray, Crystal Structure, Conformation, Triphenylphosphazenyl Group 
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 TEI-XML for    default:Reihe_B/30/ZNB-1975-30b-0973_n.pdf 
 Identifier    ZNB-1975-30b-0973_n 
 Volume    30 
52Author    Herbert Binder, Jürgen PalmtagRequires cookie*
 Title    Synthesen und Reaktionen von 4-Bora-2.6-diphospha-1.3.5-triazenen Cyclische Borbetaine Synthesis and Reactions of 4-Bora-2,6-diphospha-l,3,5-triazenes Cyclic Boron Betaines  
 Abstract    By substitution of chlorine in the title compound 2,2,4,4,6,6-hexachloro-3,5-dimethyl-4-bora-2,6-diphospha-l,3,5-triazene (1) new members of this class of compounds are synthesized. In most cases reaction starts first on the boron site. The ring reactivity can be accounted for in terms of the charge distribution in the heterocycle 1. In 1 the coupling 2 J(31 P-N-n B) could be detected for the first time. A mechanism for the ring formation is discussed. 
  Reference    Z. Naturforsch. 34b, 179—187 (1979); eingegangen am 15. Juni/4. Oktober 1978 
  Published    1979 
  Keywords    Ring Reactivity, Substitution Reactions, 4-Bora-2, 6-diphospha-l, 3, 5-triazenes 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0179.pdf 
 Identifier    ZNB-1979-34b-0179 
 Volume    34 
53Author    UlrichW. GerwarthRequires cookie*
 Title    Borverbindungen, 12. Mitteilung Das Kristallisationsverhalten der Poly(2-phenyl-1.3.2-dioxabora-cycloalkane) Boron Compounds, Part 12 The Crystallizing Behaviour of Poly(2-phenyl-l,3,2-dioxybora-cycloalkanes)  
  Reference    Z. Naturforsch. 34b, 1084—1091 (1979); eingegangen am 4. April 1979 
  Published    1979 
  Keywords    1, 3, 2-Dioxybora-cycloalkanes, Ligand Exchange, Metathetic Rearrangement, Cyclic Oligomers, Thermal Analysis 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-1084.pdf 
 Identifier    ZNB-1979-34b-1084 
 Volume    34 
54Author    P. C. Bharara, H. NöthRequires cookie*
 Title    Beiträge zur Chemie des Bors, CVII [1] Über Darstellung und Struktur eines tetraborylierten Hydrazins Contributions to the Chemistry of Boron, CVII [1] On the Preparation and Structure of a Tetraborylated Hydrazine  
  Reference    Z. Naturforsch. 34b, 1352—1357 (1979); eingegangen am 11. Juni 1979 
  Published    1979 
  Keywords    Tetrakis(l, 3-dimethyl-l, 3, 2-diazaborolidinyl)-hydrazin, NMR Spectra, X-ray 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-1352.pdf 
 Identifier    ZNB-1979-34b-1352 
 Volume    34 
55Author    Lothar Weber, Dorothee Vehreschild-Yzermann, Carl Krüger+, Gotthelf Wolmershäuser+@bulletRequires cookie*
 Title    ÜbergangsmetaU-Schwefelylid-Komplexe, XI [1] Struktur und Reaktivität von ^ 5 -Thiacyclohexadienyl-l-oxid-chrom-KompIexeii Transition Metal Sulfur Ylide Complexes, XI [1] Structure and Reactivity of 77 5 -Thiacyclohexadienyl-l-oxide Complexes of Chromium  
 Abstract    The X-ray crystal and molecular structure of tetraethylammonium-tricarbonyl-(3,5-diphenylthiacyclohexadienyl-l-oxide)chromate has been determined. This organo-metallic anion can be nitrosylated to yield neutral [7y 5 -C5H3(C6H5)2SO](CO)2(NO)Cr. Further carbonyl displacement in this compound is achieved by treatment with pyridin or phos-phanes in the presence of triethylamineoxide. 
  Reference    Z. Naturforsch. 36b, 198—204 (1981); eingegangen am 4. September 1980 
  Published    1981 
  Keywords    X-ray, 3, 5-Diphenylthiacyclohexadienyl-l-oxide, Nit rosy lation, Amineoxide Assisted Carbonyl Displacement 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0198.pdf 
 Identifier    ZNB-1981-36b-0198 
 Volume    36 
56Author    Bernd WrackmeyerRequires cookie*
 Title    U B-und 18 C-NMR-Spektroskopie von riic7o-Hexaalkyl- n B and 13 C NMR Spectroscopy of 7iüZo-Hexaalkyl-2,3,4,5-tetracarbahexaboranes(6)  
  Reference    Z. Naturforsch. 37b, 412—419 (1982); eingegangen am 26. Oktober 1981 
  Published    1982 
  Keywords    U B NMR Spectra, 13 C NMR Spectra, nido -Hexaalky 1 -2, 3, 4, 5-tetracarbahexaboranes( 6) 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0412.pdf 
 Identifier    ZNB-1982-37b-0412 
 Volume    37 
57Author    Jörg Daub, A. Delheid Hasenhiindl, Erika Salbeck, Alfred Gieren, ThomasH. ÜbnerRequires cookie*
 Abstract    [bi-2,4,6-cycloheptatrien-l-yl]-3,3' -dicarboxamidinium-Salze: Struktur der meso-Verbindung in Lösung und im Kristall [1] N ,N ,N ',N ',N ",N ",N '",N '"-O ctam ethyl-[bi-2,4,6-cycloheptatriene-l-yl]-3,3'-dicarboxam idinium Salts: Structure of the raeso-Com pound in Solution and in Solid State [1] 
  Reference    Z. Naturforsch. 40b, 1390—1397 (1985); eingegangen am 18. April 1985 
  Published    1985 
  Keywords    3, 3'-Bicycloheptatrienylamidinium Salts, 'H NMR Spectra, X-Ray, m&so-Isomers, Stereodynamic 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-1390.pdf 
 Identifier    ZNB-1985-40b-1390 
 Volume    40 
58Author    HansM. Öhrlea, K. Arin Bluhme-Hensena, BirgitM. Iddelhauveb, DietrichM. Ootzb, H. Artm, W. Underlich15Requires cookie*
 Title    Cyclisierung von Amidoximen mit Oxybis(diphenylboran) Cyclization of Amidoximes with Oxybis(diphenylborane)  
  Reference    Z. Naturforsch. 46b, 1219—1222 (1991); eingegangen am 2. April 1991 
  Published    1991 
  Keywords    Am idoxim es, 2, 3-D ihydro-l, 3, 5, 2-oxadiazaborol Derivatives, Crystal Structure 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1219.pdf 
 Identifier    ZNB-1991-46b-1219 
 Volume    46 
59Author    Z. NaturforschRequires cookie*
 Title    Synthese und Charakterisierung von 1,3,5-Hexahydrotriazin-Komplexen des Mo° und Movl  
 Abstract    Organo-substituted 1,3,5-hexahydrotriazine com plexes of the type (R N C H 2)3M o(C O)3 (R = CFI3, / -C 3 H 7 and CH2C6H 5) are obtained by ligand displacement from 7 6-C7H 8M o(C O)3 in high yields. These products have been characterized by 'H. 13C, 95Mo NM R, IR as well as mass spectroscopy and contain an electron-rich M o(C O)3 center bonded to the 1,3,5-hexahydrotriazine 6 e donor via three M o -N bonds. Oxidation o f the Mo° com ­ plex l,3,5-(C H 3N CH 2)3M o(C O)3 with H20 2 under carefully controlled conditions allows iso­ lation of 1,3,5-(CH3N C H 2) 3M o 0 3 containing a M ovl center. Chemical and spectroscopic properties o f these com plexes are compared with those o f related Mo com plexes with neutral macrocyclic ligands containing N 3 donor sets. 
  Reference    Z. Naturforsch. 50b, 1038—1044 (1995); eingegangen am 30. Dezem ber 1994 
  Published    1995 
  Keywords    1, 3, 5-Hexahydrotriazines, Carbonyl Complexes, O xo Complexes, R edox Chemistry, Multinuclear NM R Spectra 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-1038.pdf 
 Identifier    ZNB-1995-50b-1038 
 Volume    50 
60Author    H. Möhrle, U. Von Der Lieck-WaldheimRequires cookie*
 Title    Vinamidinium-Salze als Nucleophile Vinamidinium Salts as N ucleophiles  
 Abstract    1,4-diazepinium salts could not be aminomethylated with conventional methods, but the hydrochlorides produced with methyleniminium salts the C-Mannich-compounds. The reactivity of the substrate was mainly controlled by electronic effects of the substituents. Aminomethylation of 1,5-diazapentadienium salts occurred only if the conformations caused no steric hindrance of the ß-C-atom. Methyl substituted 2,3-dihydro-1,4-diazepinium salts reacted with 1,3,5 triazine to pyrimidine anellated derivatives. 
  Reference    Z. Naturforsch. 51b, 421—430 (1996); eingegangen am 4. Juli 1995 
  Published    1996 
  Keywords    Mannich Reaction, Iminium Salts, 1, 3, 5 Triazine, Push-Pull-Systems 2, 3-Dihydro- 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0421.pdf 
 Identifier    ZNB-1996-51b-0421 
 Volume    51