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81Author    Alfred Gieren, Viktor Lamm, RobertC H Addon, M. Artin, L. Kaplan, M.John Perkins, Peter FlowerdayRequires cookie*
 Title    Vergleichende Röntgenstrukturanalysen von Naphthothiadiazinen und isovalenzelektronischen Naphthotriazinen-I-nstitut für B iochem ie, A bt. Strukturforschung I, D-8033 Martinsried  
 Abstract    Röntgenstrukturanalysen von Acenaphthyleno[5,6-cd][l,2,6]-thiadiazin, 2-Methyl-2 H-acenaphthyleno[5,6-de]-l,2,3-triazin und Naphtho[l,8-de]thiadiazin Comparison of Naphthothiadiazines and Isoelectronic Naphthotriazines by X-Ray Structural Analysis X-Ray Structural Analyses of A cenaphthyleno[5,6-cd][l,2,6]thiadiazine, 2-M ethyl-2H -acenaphthyleno[5,6-de]-l,2,3-triazine and N ap h th o [l,8-de]thiadiazine We have performed an X-ray structural analysis of the sulphur diimide 1 and the isoelectronic triazine 2. In addition we found two crystal m odifications o f the sulphur diimide 3, which is an analogue o f the previously characterized 4, but the m odification suitable for X-ray analysis (tetra­ gonal, ß) was disordered. From the bond lengths o f 1 and 2 results, that in both cases there is only 
  Reference    Z. Naturforsch. 39b, 975 (1984); eingegangen am 27. D ezem ber 1983 
  Published    1984 
  Keywords    Sulphur D iim ides, 1, 2, 3-Triazines, X -R ay, Bonding Relationships 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0975.pdf 
 Identifier    ZNB-1984-39b-0975 
 Volume    39 
82Author    Richard Neidlein, Reiner Gottfried, Alfred Gieren, Carsten-P Kaerlein, Thomas HübnerRequires cookie*
 Title    Kupplungsreaktionen von Diazoniumsalzen mit 3-ferf-Butoxy- l,6-methano[10]annulen und Röntgenstrukturanalyse eines Vertreters Coupling Reactions of Diazonium Salts with 3-terr-Butoxy-l,6-methano[10]annulene and X-Ray Structure Analysis of one Compound  
 Abstract    The syntheses of 5a—c by coupling reactions of 3-terr-butoxy-l,6-methano[10]annulene with different aryldiazonium salts as well as their spectroscopic properties are described; an X-ray structure analysis of 5c is reported. 
  Reference    Z. Naturforsch. 40b, 193—198 (1985); eingegangen am 20. August 1984 
  Published    1985 
  Keywords    Syntheses with Coupling Reactions, 1, 6-Methano[10]annulenylarylhydrazones, X-Ray, Bonding Relationships 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0193.pdf 
 Identifier    ZNB-1985-40b-0193 
 Volume    40 
83Author    Requires cookie*
 Title    Imidazolkatalysierte Ringerweiterung von 2-(Diarylmethyl)- und 2-(ArylaIkyI)-l,2-oxazetidin-3-onen zu 4-Oxazolidinonen  
 Abstract    Im idazole-C atalyzed R ing E xpansion of 2-(D iaryIm ethyl)-and 2 -(A ry lalkyl)-l,2-oxazetidin-3-ones to 4-O xazolidinones T hom as L au terb ach und D etlef G effken* 
  Reference    Z. Naturforsch. 41b, 1186—1190 (1986); eingegangen am 27. März 1986 
  Published    1986 
  Keywords    l, 2-Oxazetidin-3-ones, Im idazole 4-Oxazolidinones, N -Substituted Glycolohydroxamic Acids, 1, 1 '-Carbonyldiim idazole 
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 TEI-XML for    default:Reihe_B/41/ZNB-1986-41b-1186.pdf 
 Identifier    ZNB-1986-41b-1186 
 Volume    41 
84Author    Werner Schnurr, Manfred RegitzRequires cookie*
 Title    Phosphorverbindungen ungewöhnlicher Koordination, 31 [1] Cycloaddition von Diazoverbindungen an ein P—Chlor-phosphaalken Phosphorus Compounds with Unusual Coordination, 31 [1] Cycloaddition of Diazo Compounds onto a P—Chloro-phosphaalkene  
 Abstract    Chloro bis(trimethylsilyl)methylene phosphane (4) reacts with the diazo compounds 5, 10, 15 and 20 even at low temperatures with formation of the 3H-l,2,4-diazaphospholes 6,11,16 and 21. The products are unstable and decompose either with elimination of nitrogen to yield 1-chloro phosphiranes (9,14, 19 and 22), or isomerize with aromatization (11 —> 13) or transformation into 4,5-dihydro-l,2,4-diazaphospholes (6—> 8, 16—» 18) by trimethylsilyl shifts. Silyl groups attached to ring nitrogen are easily hydrolized (8 —> 7,13 —» 12, 18 —> 17), those attached to ring carbon are cleaved by treatment with potassium fluoride in dimethyl formamide (7 —> 23, 12 —> 24). 
  Reference    Z. Naturforsch. 43b, 1285—1292 (1988); eingegangen am 20. Juni 1988 
  Published    1988 
  Keywords    Chloro-methylene Phosphanes, Diazo Compounds, 1, 2, 4-Diazaphospholes, 1-Chlorophosphiranes 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-1285.pdf 
 Identifier    ZNB-1988-43b-1285 
 Volume    43 
85Author    M. Arianne Bäudler, JosefH. AhnRequires cookie*
 Title    Zur Existenz eines Triphosphacyclobutenid-Ions P3CH20 Contributions to the Chemistry of Phosphorus, 204 [1] On the Existence of a Triphosphacyclobutenide Ion P3C H 2e  
 Abstract    The structure o f the reaction product o f white phosphorus and sodium in diglyme which exhibits a low field AB2 system in the 31P {'H } N M R spectrum [4] has been reexamined. A c­ cording to the results o f a complete analysis o f its proton coupled 31P N M R spectrum (ABB'XX' system), the compound is the hitherto unknown 1,2,3-triphosphacyclopentadienide 
  Reference    Z. Naturforsch. 45b, 1139—1142 (1990); eingegangen am 9. Februar 1990 
  Published    1990 
  Keywords    Triphosphacyclobutenide Ion, 1, 2, 3-Triphosphacyclopentadienide Ion, Tetraphosphacyclopentadienide Ion, Phosphorus Heterocycles 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1139.pdf 
 Identifier    ZNB-1990-45b-1139 
 Volume    45 
86Author    Z. NaturforschRequires cookie*
 Title    Filippo Imperato  
 Abstract    A new pentaoxigenated xanthone has been iso­ lated from aerial parts o f the fern Cystopteris fra­ gilis. By spectroscopic and chemical methods this compound has been shown to be 1,6-dihydroxy-3,5,7-trimethoxyxanthone which is o f biosynthetic interest in ferns. 
  Reference    Z. Naturforsch. 45b, 1603—1604 (1990); received June 1 1990 
  Published    1990 
  Keywords    Cystopteris fragilis, Pteridophyta, Aspleniaceae, 1, 6-Dihydroxy-3, 5, 7-trimethoxyxanthone 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1603_n.pdf 
 Identifier    ZNB-1990-45b-1603_n 
 Volume    45 
87Author    N. Orbert, A. Uner, R. Einer Probst, Claus-Rüdiger Heikenwälder, E. Berhardt Herdtweck, Siegfried Gam, G.Erhard Müller3Requires cookie*
 Title    Beeinflussen interne N-Donorliganden Hydrolyse-und Kondensationsreaktionen von Chlorsilanen? D o Internal N-D onor Ligands Influence the Hydrolysis and Condensation Reactions of Chlorosilanes?  
 Abstract    The reaction of [C6H4CH2N(CH3)2]2SiCl2 (1) with hydrogen chloride gives the singly pro-tonated adduct 2. Its solid state structure has been determined by single crystal X-ray dif­ fraction. Centrosymmetric 2 is orthorhombic, space group Pbca, a = 1694.9(2), b = 1161.7(2), c = 2501.7(3) pm; Z -8. Controlled hydrolysis of 1 leads to the 1,3-siloxanediol 4, probably via the precursors 3 a -3 c which could not be isolated. The hydrogen chloride formed during the hydrolysis protonates two of the dimethylamino groups, while the other two dimethyl-amino functions form hydrogen bonds to the silanol groups. Centrosymmetric 4: monoclinic, space group P 2Jc, a = 980.3(1), b = 933.9(1), c = 2177.5(2) pm, ß = 99.94(1)°; Z = 4. If the hydrolysis is carried out in the presence of lithium naphthalenide, the metalated compound {[C6H4CH2N(CH3)2]2Si(OLi)OH}4-2LiCl-2CHCl3 (5) is obtained. The solid state structure of 5 exhibits two cube-like subunits which are held together by nitrogen and oxygen lithium contacts, hydrogen bonds between silanol groups and nitrogen atoms, and which are linked by the four silicon centres. Tetrameric 5: monoclinic, space group C2/C or Cc; a -1523.6(2), b -2440.2(1), c = 2534.8(2) pm, ß = 93.83(3)°; Z = 8. These results show that the intramolec­ ular donor capabilities of the dimethylaminobenzyl ligand at silicon can stabilize 1,3-süox-anediol and SiOLi substructures. Compounds like 1 serve as model compounds for the con­ trolled formation of precursors for silicone synthesis. 
  Reference    Z. Naturforsch. 48b, 1625—1634 (1993); eingegangen am 26. Juli 1993 
  Published    1993 
  Keywords    Amino-Functionalized Dichlorosilanes, Control of Hydrolysis Reactions, 1, 3-Siloxanediol, Lithium Cluster, Structure 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1625.pdf 
 Identifier    ZNB-1993-48b-1625 
 Volume    48 
88Author    HansG. Ünter Aurich, Abdellatif ChairRequires cookie*
 Title    .3-DipoIare Cycloaddition von Dinitronen - Bildung tricyclischer Dimerer 1 .3 -Dipolar Cycloaddition of Dinitrones -Formation of Tricyclic Dimers  
 Abstract    Various dialdehydes (1 -5) were formed by addition of dithiols to acrolein. Reaction of these dialdehydes with N-alkylhydroxylamines afforded dinitrones the two nitrone groups of which were joined by an alkylidene chain containing two sulfur atoms (6 a ,b -1 0 a ,b). Cycloaddition of these dinitrones with dimethyl acetylenedicarboxylate proceeded in the usual way giving bis(4-isoxazolines) (lla -1 5 a) . 
  Reference    Z. Naturforsch. 49b, 963—9 (1994); eingegangen am 16. März 1994 
  Published    1994 
  Keywords    Dialdehydes, Dinitrones, 1, 3-Dipolar Cycloaddition, Tricyclic Compounds, Metal C om plexes 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0963.pdf 
 Identifier    ZNB-1994-49b-0963 
 Volume    49 
89Author    Akinori ShiotaniRequires cookie*
 Title    Die Pd-katalysierte oxidative Kupplungsreaktion von Methylbenzoesäuremethylester The Pd-Catalyzed Oxidative Coupling Reaction of Methyl Methylbenzoates  
 Abstract    The Pd-catalyzed oxidative coupling reaction of methyl o-toluate gives, in the presence of a Pd/l,10-phenanthroline(phen)/Cu catalyst, exclusively, the para-linked biphenyldicarboxy-lates 1, 2, and 3. On the other hand, the meta-linked biphenyldicarboxylates 4 and 5, were predominantly formed in a catalyst system of Pd/2,4-pentanedione(acacH)/Cu, and under similar conditions 6 and 7 were also obtained from the coupling reaction of methyl m-toluate and methyl p-toluate, respectively. A reaction scheme has been proposed. 
  Reference    Z. Naturforsch. 49b, 1731—1736 (1994); eingegangen am 21. April 1994 
  Published    1994 
  Keywords    Coupling Reaction, Steric Influence, Palladium, 1, 10-Phenanthroline, 2, 4-Pentanedione 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1731.pdf 
 Identifier    ZNB-1994-49b-1731 
 Volume    49 
90Author    AndreasF. Stange, Eberhard Waldhör, Michael Moscherosch, Wolfgang KaimRequires cookie*
 Title    Variable Structure of the Cu2S2 Core in Doubly Thiolate-Bridged Dicopper(I) Complexes. An X-Ray Crystallographic, Electrochemical and EPR Study of (dmp)2 (o-CH3 C6H4S)2Cu2 , dmp = 2,9-Dimethyl-l,10-phenanthroline, and a Comment on the Nature of Phenanthroline-Containing "Cu(0)" Complexes  
 Abstract    The molecular and crystal structure of the dicopper(I) complex (dm p)2(M-o-CH3C6H4S)2Cu2 (1), dmp = 2,9-dim ethyl-l,10-phenanthroline, has been deter­ mined. With Cu/S/Cu and S/Cu/S bond angles between 80 and 100°, the planar structure of the central CuSCuS four-membered ring is much more symmetric for 1 as compared to the analogous complex 2 of unsubstituted 1,10-phenanthroline which has a folded Cu2S2 core with bond angles between 67 and 108°. This result illustrates a considerable structural flexi­ bility of the LCu(m-SR)2CuL entity which is being discussed as a possible model for CuA centers of cytochrome c oxidase or nitrous oxide reductase. Oxidation of both com plexes 1 and 2 remains irreversible even at cyclovoltammetric scan rates o f 1 V/s. However, the methyl substitution in complex 1 causes increased reversibility of the electronically coupled dmp-based reduction processes. Accordingly, the EPR spectrum of l -* is characterized by hyper-fine splitting from dmp--and a relatively small 63 " Cu coupling of 0.53 mT. The stabilization of 2,9-disubstituted 1,10-phenanthroline radical anions by coordination to Cu(I) is also dem ­ onstrated by detection of a single broad EPR line at g 2.0028 for the formal "C u(0)" complex Cu(dpp)2 = CuI(dpp_-)(dpp), dpp = 2,9-diphenyl-l,10-phenanthroline. While the EPR signal of Cu(dpp)2 loses intensity on cooling, possibly due to dimerization and spin-pairing, the distorted tetrahedral configuration with essential orthogonal arrangement of dpp jz systems seem s to disfavour an intramolecular electron hopping. 
  Reference    (Z. Naturforsch. 50b, 115—122 [1995]; received July 25 1994) 
  Published    1995 
  Keywords    Crystal Structure, Copper Complexes, Sulfur Ligands, 1, 10-Phenanthrolines, EPR Spectra 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0115.pdf 
 Identifier    ZNB-1995-50b-0115 
 Volume    50 
91Author    RajK. Bansal, Neelam Gandhi, A. Schmidpeter, K. KaraghiosoffRequires cookie*
 Title    Synthesis of [l,2,4,3]Triazaphospholo[l,5-a]pyridines+  
 Abstract    Condensation o f 1,2-diaminopyridinium iodides with tris(dimethylamino)phosphine gives [l,2,4,3]triazaphospholo[l,5-a]pyridines 2a-d. Diethylamine adds to the N=P bond o f 2a, b only if the phosphorus is oxidized at the same time. Hydrolysis of 2 a opens the triazaphos-phole ring at its 2,3-bond. 
  Reference    Z. Naturforsch. 50b, 558 (1995); received October 21 1994 
  Published    1995 
  Keywords    l, 3-Diaza-2-phosphaindolizines, NM R Spectra, Mass Spectral Fragmentation, Hydrolysis, 1, 2-Addition Reactions 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0558.pdf 
 Identifier    ZNB-1995-50b-0558 
 Volume    50 
92Author    Hans Bock, Sabine Nick, Christian Näther, Wolfgang BenschRequires cookie*
 Title    Wechselwirkungen in Kristallen, 63 [1, 2]  
 Abstract    Kristallisation und Strukturbestimmung von 1,2-Dimesitoylbenzol und von Bis(hydrogen-l,2-dimesitoylbenzol)-dinatrium-bis(ethylendiamin) Interactions in Crystals, 63 [1, 2] Crystallization and Structure Determ ination of 1,2-Dimesitoylbenzene and of Bis(hydrogen-l,2-dimesitoylbenzene)-disodium-bis(ethylendiamine) 
  Reference    Z. Naturforsch. 50b, 605 (1995); eingegangen am 18. August 1994 
  Published    1995 
  Keywords    1, 2-Dimesitoylbenzene, Radical A nion Sodium Salt, Single Crystal Structures, M N D O Calculations 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0605.pdf 
 Identifier    ZNB-1995-50b-0605 
 Volume    50 
93Author    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 
94Author    G. Erhard, H. Enesa, A. Nton Rieker, M. Arkus, N. Eum Ayerb, W. Olfgang HillerRequires cookie*
 Title    ,4-Addition of Lithium Organyls to /?ara-Quinols / Structure Determination of 2,6-Di-te/t-butyl-4-hydroxy-4,5-diphenyIcyclohex-2-en-l-one  
 Abstract    Addition of lithium organyls to sterically hindered para-quinols leads to 1,2-or 1,4-adducts. The 1,4-addition prevails, if the 4-substituents in the quinol and the organic group in the lithium organyl are large. Four 1,4-addition products (2-cyclohex-2-en-l-ones) are synthesized and their structures investigated by NMR spectroscopy. The aryl groups at C-4 and C-5 acquire equatorial positions, the alkyl group at C-6 is bisectional. These results are confirmed by X-ray analysis of 2,6-di-terr-butyl-4-hydroxy-4,5-diphenylcyclohex-2-en-1 -one, revealing a twist boat conformation of the cyclohexene ring. 
  Reference    Z. Naturforsch. 51b, 381—387 (1996); received August 11 1995 
  Published    1996 
  Keywords    Crystal Structure, Quinol, 1, 4-Addition, Lithium Organyl, Cyclohex-2-en-l-ones 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0381.pdf 
 Identifier    ZNB-1996-51b-0381 
 Volume    51 
95Author    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 
96Author    P.Requires cookie*
 Title    Phosphonio-substituierte 1,3-Diphosphanaph thaline aus der a,o-Kondensation von Phosphonium-benzyliden  
 Abstract    h o sp h o n io -S u b stitu te d 1 .3 -D ip h o sp h a n ap h th a le n es from th e a,o -C o n d e n sa tio n o f P h o sp h o n iu m -b en z y lid e s G eo rg Jo ch em , A lfred S chm idpeter* 
  Reference    Z. Naturforsch. 51b, 773—777 (1996); eingegangen am 21. Dezember 1995 
  Published    1996 
  Keywords    Phosphonium Ylides, Electrophilic Aromatic Substitution, 1, 3-Benzodiphosphinines, Spontaneous Chlorophosphine Dissociation, Selective Oxidation by Elemental Sulfur 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0773.pdf 
 Identifier    ZNB-1996-51b-0773 
 Volume    51 
97Author    B. Ernd, W. Rackm Eyer, D. Örfler, W. Olfgang Milius, M. Ax, H. ErberholdRequires cookie*
 Title    ,1-Organoboration of Trimethyl-l-propynyltin Using Diorganoboryl-Substituted Ferrocenes  
 Abstract    The reactions of various diorganoborylferrocenes, F c -B R 2 [1, R = Me (a), Et (b), 'Pr (c), 'Bu (d), Ph (f), R2B = 9-borabicyclo[3.3.1]nonyl (e)] and 1,1 '-bis(9-borabicyclo[3.3.1]nonyl)-ferrocene (2) with trimethyl-l-propynyltin (3) were studied, and the products of the 1,1-organoboration were characterized as the alkenyltin compounds 4 -6 by 'H, UB, 13C and 119Sn NMR. In the cases of l a -I d and If, there is competition between the transfer of a ferrocenyl group and the other organyl groups R from boron to carbon, whereas in the case of the 9-borabicyclo[3.3.1]nonane derivatives le and 2, the enlargement of the bicyclic system takes place selectively (compounds 4e and 6). The molecular structure of the product 6, obtained from the reaction between the l,l'-diborylated ferrocene 2 and two equivalents of 3, was determined by single crystal X-ray analysis (space group P2x!c\ monoclinic; Z = 4, a = 958.3(2), b = 1610.4(3), c = 2405.3(5) pm and ß = 90.33(3)°). 
  Reference    Z. Naturforsch. 51b, 851 (1996); received October 26. 1995 
  Published    1996 
  Keywords    Ferrocenes, Trimethyl-l-propynyltin, 1, 1-Organoboration, Alkenyltin Compounds, X-Ray 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0851.pdf 
 Identifier    ZNB-1996-51b-0851 
 Volume    51 
98Author    Hans-Peter Schrödel, Alfred SchmidpeterRequires cookie*
 Title    Phosphorandiyl-l,3,5-triphosphinane/ Phosphonio-l,3,5-triphosphinin Kationen Phosphoranediyl-l,3,5-triphosphinanes / Phosphonio-l,3,5-triphosphinine Cations  
 Abstract    Depending on the reaction conditions, the condensation of triphenylphosphonium bis(trimethylsilyl)methylide 1 with phosphorus trichloride and phosphorus tribromide gives the cyclic trimers (Ph3P=CP-X)3, X = Cl, Br, trihalo-tris(triphenylphosphoranediyl)-1,3,5-triphosphinanes 3 and 5. In solution the compounds dissociate to give the ionic forms 4 and 6 which rapidly exchange the halide between the halophosphine and the phosphenium moieties. The exchange is slowed down when the halide ion is replaced by a tosylate ion. Substitution of the covalent chloride of 4 for diphenylphosphino groups gives again an ionic product 10, while the introduction of a morpholino group as well as the replacement of all chloride by triflate give dicationic compounds 12 and 13. Reaction of 3 with gallium trichloride finally leads to the tris(triphenylphosphonio)-l,3,5-triphosphinine trication as a major equilibrium participant. 
  Reference    Z. Naturforsch. 52b, 162—168 (1997); eingegangen am 24. Oktober 1996 
  Published    1997 
  Keywords    Phosphonium Ylides, Halophosphines, Phosphenium Ions, 1, 3, 5-Triphosphinines, Halide Exchange 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0162.pdf 
 Identifier    ZNB-1997-52b-0162 
 Volume    52 
99Author    Lothar BeyerRequires cookie*
 Title    Substituierte l,2,4-Thiadiazolium-dichloroaurate(I) und -tetra- chloroaurate(III) als Reaktionsprodukte von N-Thiocarbamoyl- benzamidinen mit TetrachIorogold(III)-Verbindungen  
 Abstract    Substituted 1,2,4-T hiadiazolium dichloroaurates(I) and -tetrachloroaurates(III) as Products o f the R eaction o f N -T hiocarbam oyl-benzam idines w ith Tetrachlorogold(III) Com pounds U w e Schröder3, R ainer R ichter3, Jürgen H artung3, U lrich A bram b, 
  Reference    Z. Naturforsch. 52b, 620—628 (1997); eingegangen am 12. März 1997 
  Published    1997 
  Keywords    1, 2, 4-Thiadiazoliumchloroaurates(I/III), Synthesis, X-Ray, EM Spectra, N-Thiocarbamoylbenzamidines 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0620.pdf 
 Identifier    ZNB-1997-52b-0620 
 Volume    52 
100Author    Z. NaturforschRequires cookie*
  Reference    Z. Naturforsch. 52b, 1544—1548 (1997) 
  Published    1997 
  Keywords    -Diphenyl l-Cyclohexyl-l-(4-nitroanilino)m ethanephosphonate, 1, 1-Diaryl-Substituted Dimers Crystal Structure, FAB-Mass Spectra 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-1544.pdf 
 Identifier    ZNB-1997-52b-1544 
 Volume    52