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1985 (316)
101Author    Abdul Malik, Michael Roosz, Wolfgang VoelterRequires cookie*
 Title      
 Abstract    Displacement of the triflyl by the amino group in benzyl-2,3-anhydro-4-triflyl-pyranosides 4—6 gives with inversion the benzyl-2,3-anhydro-4-amino-4-desoxypyranosides 7—9. The triflyl group turns out to be a reactive leaving group which can be replaced by ammonia under mild conditions. 
  Reference    Z. Naturforsch. 40b, 559—561 (1985); received May 14 1984 
  Published    1985 
  Keywords    Amino Sugars, Anhydro Sugars, Triflate Sugars 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0559.pdf 
 Identifier    ZNB-1985-40b-0559 
 Volume    40 
102Author    AbdulalahT. Mohammed, Ulrich MüllerRequires cookie*
 Title    Tetraphenylphosphonium Octabromodiantimonate, (PPh 4 ) 2 [Sb 2 Br 8 ], Synthesis and Crystal Structure  
 Abstract    Tetraphenylphosphonium Octabromodiantimonate, Crystal Structure (PPh 4) 2 [Sb 2 Br 8 ] can be prepared from SbBr 3 and PPh 4 Br in CH 2 Br 2 or from Sb 2 S 3 , PPh 4 Br and HBr in 1,2-dichloroethane. Its crystal structure was de-termined with X-ray diffraction data (2764 observed reflexions, R = 0.039). Crystal data: triclinic, space group PI, a = 1024.9, b = 1127.1, c = 1282.4 pm, a = 111.80, ß = 94.52, y = 106.92°, Z = 1. The centrosymmetric [Sb 2 Br 8 ] 2 ~ ions consist of two square pyramids sharing a basal edge. The cations are grouped to (PPh 4 +) 2 pairs similarly as in (PPh 4) 2 [As 2 Cl 8 ]; although the latter compound has a comparable general crystal packing, it is not isotopic. IR and Raman spectral data are reported. 
  Reference    Z. Naturforsch. 40b, 562—564 (1985); eingegangen am 15. November 1984 
  Published    1985 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0562_n.pdf 
 Identifier    ZNB-1985-40b-0562_n 
 Volume    40 
103Author    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 
104Author    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 
105Author    W. S. Sheldrick, J. KaubRequires cookie*
 Title    Darstellung und Struktur von Cs 2 As 8 Si3 Preparation and Structure of CS2AS8SI3  
 Abstract    Cesium Thioarsenate(III), X-Ray The thioarsenate(III) Cs 2 As 8 S 13 has been prepared by the reaction of Cs 2 C0 3 with As 2 S 3 in aqueous solution under pressure at 180 °C. Its structure has been established by X-ray structural analysis. The polymeric anion (As g S 13 z ~)" is composed of individual As 4 S 4 -rings, which are each connected to three further eight-membered rings via As-S-As bridges, so giving rise to an infinite layer structure. 
  Reference    Z. Naturforsch. 40b, 571—573 (1985); eingegangen am 21. Januar 1985 
  Published    1985 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0571.pdf 
 Identifier    ZNB-1985-40b-0571 
 Volume    40 
106Author    G. Brachtel, M. JansenRequires cookie*
 Title    Über die Reaktion von Hydroxylamin mit Acrylsäure On the Reaction between Hydroxylamine and Acrylic Acid  
 Abstract    3,3-Bis-[2-carboxyethyl]-3-hydroxyaminopropionic Acid Betain, Synthesis, Crystal Structure Hydroxylamine reacts with acrylic acid via a triple Michael-addition forming the 3,3-bis-[2-carboxyethyl]-3-hydroxyaminopropionic acid betain (C 9 H 15 N0 7). The crystal and molecular structures have been determined by X-Ray methods (P2 x /n; a = 8.097(2), b = 9.343(3), c = 14,647(4) A, ß = 91.35(3)°, Z = 4). 
  Reference    Z. Naturforsch. 40b, 574—577 (1985); eingegangen am 23. Januar 1985 
  Published    1985 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0574.pdf 
 Identifier    ZNB-1985-40b-0574 
 Volume    40 
107Author    Lothar WeberRequires cookie*
 Title    Synthese und Bindungsverhältnisse von 1-Dimethylaminothiabenzol-l-oxiden Synthesis and Bonding Properties of 1-Dimethylaminothiabenzene-l-oxides  
 Abstract    The 1-dimethylaminothiabenzene-l-oxides 5a—d are obtained by the reaction of the 2-propy-nones 2a—d with methyl-dimethylamino-oxosulfonio methanide 3 and subsequent treatment of the mixture with f-BuOK. The bonding properties of 5a—d are discussed by comparison of their IR, 'H and 13 C NMR data with those of the already known 1-methylthiabenzene-l-oxides 6a—d. 
  Reference    Z. Naturforsch. 40b, 578—581 (1985); eingegangen am 21. Januar 1985 
  Published    1985 
  Keywords    1-Dimethylaminothiabenzene-l-oxide, Methyl-dimethylamino-oxosulfonio Methanide, Cyclization, Bonding Properties 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0578.pdf 
 Identifier    ZNB-1985-40b-0578 
 Volume    40 
108Author    Stanislav Heřmánek, Otomar Kříž, Jiří Fusek, Bohuslav Čásenský, Zbyněk ČernýRequires cookie*
 Title    Sodium Dihydrido-bis(2-methoxyethoxo)aluminate (SDMA): Structure and Behaviour in Solutions  
 Abstract    Alkoxohydridoaluminates, Equilibria in Solvents, Sodium Dihydrid-bis(2-methoxyethoxo)aluminate SDMA, according to 27 AI NMR almost uniform in benzene, is increasingly disproportionated in the presence of donors in the following order: C 6 H 6 Bu 2 0 < Et 2 0 < anisole < dioxane < THF < monoglyme < diglyme to the NaAlH 4 _. r (OCH 2 CH 2 OCH 3) ;t compounds; the structure in solutions is represented by an open-chain oligomer with four-coordinated Na and Al atoms and with Na + autocomplexed by two bidentate -OCH 2 CH 2 OCH 3 ligands belonging to two neigh-bouring Al Atoms. 
  Reference    Z. Naturforsch. 40b, 582—584 (1985); received October 10 1984/January 1 1985 
  Published    1985 
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 Identifier    ZNB-1985-40b-0582 
 Volume    40 
109Author    M. Pulst, M. Weißenfels, F. DietzRequires cookie*
 Title    Cyaninfarbstoffe durch [2+2]-Photocycloaddition substituierter 4-Dimethylamino-^-halogenstilbene Cyanine Dyes with [2+2]-Photocycloaddition of Substituted 4-Dimethylamino-a-halogenostilbenes  
 Abstract    The results of the Vilsmeier-Haack-Arnold-reaction with /3-4-Dimethylamino-desoxybenzoins are not the expected chloro-formyl-stilbene derivatives but 4-dimethylamino-a-chloro-stilbenes. These compounds undergo a [2+2]photocycloaddition reaction in solid state or fixed on a cellu-lose matrix yielding unstable substituted dichlorotetraphenyl-cyclobutane derivatives, which spontaneously eliminate two molecules of HCl in a following thermal reaction. In this way coloured species — cyanine dyes with a bridged polymethine chain — are formed. 
  Reference    Z. Naturforsch. 40b, 585—589 (1985); eingegangen am 30. Dezember 1984 
  Published    1985 
  Keywords    Vilsmeier-Haack-Arnold Reaction, /?-4-Dimethylamino-desoxybenzoins, Substituted 4-Dimethylamino-a-halogenostilbenes, [2+2]-Photocycloaddition, Cyanine Dyes 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0585.pdf 
 Identifier    ZNB-1985-40b-0585 
 Volume    40 
110Author    PeterG. Jones, HerbertW. Roesky, Hansjörg Grützmacher, GeorgeM. SheldrickRequires cookie*
 Title    Oxidative Knüpfung einer Phosphor-Phosphor-Bindung unter Einwirkung von Ag(I)-bzw. Cu(II)-Ionen: Synthese und Struktur von [(C 6 H5)PH 2 Ag{|i-(C 6 H 5 PH) 2 }]2 (AsF 6 ) 2 , einem sechsgliedrigen Silber-Phosphor-Ring The Oxidative Formation of a Phosphorus-Phosphorus Bond in the Presence of Ag(I) and Cu(II) Ions: Synthesis and Structure of [(C 6 H 5 )PH 2 Ag{^-(C 6 H 5 PH) 2 }] 2 (AsF 6 ) 2 , Containing a Six-Membered Silver-Phosphorus Ring  
 Abstract    The reaction between AgAsF 6 and phenylphosphine proceeds with formation of a phosphorus-phosphorus bond. The main product 1, [(C 6 H 5)PH 2 Ag{u-(C 6 H 5 PH) 2 }] 2 (AsF 6) 2 , was characterized by an X-ray structure determination [PI, a = 919.0(4), b = 1109.8(4), c = 1316.4(5) pm, a = 97.48(3), ß = 107.25(3), y = 102.71(3)°, Z = 1, R = 0.057 for 2806 observed reflections], 1 contains Ag 2 P 4 rings; the silver atoms are further coordinated by phenylphosphine ligands, thus acquiring trigonal coordination geometry. A similar reaction is observed with Cu(AsF 6) 2 , forming the analogous Cu(I) complex 2. 
  Reference    Z. Naturforsch. 40b, 590—593 (1985); eingegangen am 28. Januar 1985 
  Published    1985 
  Keywords    Crystal Structure, Silver, Phenylphosphine, Copper 
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 Identifier    ZNB-1985-40b-0590 
 Volume    40 
111Author    Ralf Steudel, Torsten Sandow, Jürgen SteidelRequires cookie*
 Title    Darstellung und Eigenschaften von cyclo-Nonaschwefeloxid (S 9 0) und von cjc/o-Dekaschwefeloxid (Si 0 O) [1]  
 Abstract    Preparation and Properties of cyc/o-Nonasulfuroxide (S 9 0) and of cyc/o-Decasulfuroxide (S 10 O) [1] The homocyclic oxides S 9 0 (m.p. 33 °C, dec.) and S 10 O (m.p. 51 °C, dec.) have been prepared by oxidation of the corresponding sulfur rings S 9 and S 10 , respectively, by trifluoroperoxy acetic acid (molar ratio 1:2—3) in a carbon disulfide/methylene chloride mixture. According to infrared and Raman spectra, both compounds contain an exocyclic oxygen atom. S 9 0 and S 10 O decompose at 25 °C to give S0 2 and a polysulfuroxide S n O with «>10 but both can be stored at —78 °C without decomposition. The SS bond distances are discussed on the basis of the Raman spectra. In addition, the Raman spectrum of solid S 9 has been recorded for the first time. It shows that S 9 crystallizes as two allotropes (a-and ß-S g) both consisting of cyclic molecules of either Q or C 2 symmetry with bond distances of between 203 and 209 pm. 
  Reference    Z. Naturforsch. 40b, 594—600 (1985); eingegangen am 5. November 1984 
  Published    1985 
  Keywords    Sulfur Rings, Sulfur Oxides, Raman Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0594.pdf 
 Identifier    ZNB-1985-40b-0594 
 Volume    40 
112Author    Manfred Weidenbruch, Klaus Kramer, Karl Peters, Hans Georg Von SchneringRequires cookie*
 Title    Siliciumverbindungen mit starken intramolekularen sterischen Wechselwirkungen, XX [1] l,l-Di-terf-butyl-2,2-dimesityldisilane: Synthese  
  Reference    Z. Naturforsch. 40b, 601—606 (1985) 
  Published    1985 
  Keywords    Molekülstruktur, Radikale Silicon Compounds with Strong Intramolecular Steric Interactions, XX [1] l, l-Di-rm-butyl-2, 2-dimesityldisilanes: Synthesis, Molecular Structure, Radicals, l-Di-rm-butyl-2, 2-dimesityldisilanes, X-Ray, Emperical Force Field Calculations, Disilenyl Radical Anion 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0601.pdf 
 Identifier    ZNB-1985-40b-0601 
 Volume    40 
113Author    Heinz Hoberg, Klaus Radine, Carl Krüger, MariaJ. RomãoRequires cookie*
 Title    Synthese neuer Phosphan-Nickel(I)-KompIexe und Kristallstruktur von /# 3 Jodo-fra-^-iodo-cycIotris(triphenylphosphan-nickel), (TPP) 3 Ni 3 I 4 Synthesis of New Phosphine Nickel(I) Complexes and Crystal Structure of // 3 -Iodo-m's-//-iodo-cyclotris(triphenylphosphine Nickel), (TPP) 3 Ni 3 I 4  
 Abstract    Synthesis and properties of the new nickel(I) complexes (COD)Ni(TPP)I (3) and (TCP)Nil (5) are reported. Reaction of 3 and 5 with diphenylacetylene (7) yields alkyne complexes (R 3 P)NiI(PhC2Ph)Ni(R 3 P)I (R = Ph (8a), and Cy (8b)). In solution, 3 disproportionates to give nickel(O) and (TPP) 3 Ni 3 I 4 (12)), the structure of which has been determined by X-ray crystallogra-phy. Cluster compound 12 is cleaved into monomeric units by addition of ligands such as TPP or CO (TPP = triphenylphosphine, TCP = tricyclohexylphosphine, COD = 1,5-cyclooctadiene). 
  Reference    Z. Naturforsch. 40b, 607—614 (1985); eingegangen am 17. Januar 1985 
  Published    1985 
  Keywords    Nickel(I), Alkyne Complex, Cluster, Crystal Structure 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0607.pdf 
 Identifier    ZNB-1985-40b-0607 
 Volume    40 
114Author    Ekkehard Lindner, Fritz Zinßer, HermannAugust Mayer, Wolfgang Hiller, Riad FawziRequires cookie*
 Title    Darstellung und Eigenschaften von und Reaktionen mit metallhaltigen Heterocyclen, XLVII [1] Einschiebungsreaktionen von phasentransferkatalytisch in situ erzeugten Dihalocarbenen in P-haltige Manganacycloalkane — Struktur und chemisches Verhalten der Reaktionsprodukte Preparation and Properties of and Reactions with Metal-Containing Heterocycles, XLVII [1] Insertion Reactions of Phase-Transfer-Catalytically in situ Generated Dihalocarbenes into P-Containing Manganacycloalkanes — Structure and Chemical Behaviour of the Reaction Products  
 Abstract    The phase-transfer-catalytically in situ generated dihalocarbenes CC1 2 and CBr 2 are inserted into a ß-C—H bond of the five-and six-membered phosphamanganacycloalkanes (OC) 4 MnPPh 2 (CH 2)"CH 2 CH 2 (la, b) [n = 1(a), 2(b)] to give the functionalized metallacycles (OC) 4 MnPPh 2 (CH 2)"CH(CHX 2)CH 2 (2a, a', b, b') [X = Cl: n = l(a), 2(b); X = Br: n = l(a'), 2(b')]. 2b crystallizes in the orthorhombic space group Pbca with Z = 8 and has a distorted chair conformation with equatorial position of the CHC1 2 group. The envelope conformation of 2a in solution was elucidated by means of 'H and 13 C{'H} NMR spectroscopic investigations. 
  Reference    Z. Naturforsch. 40b, 615—623 (1985); eingegangen am 20. Dezember 1984 
  Published    1985 
  Keywords    Dihalocarbene Insertion, Manganacycloalkanes, X-Ray, NMR Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0615.pdf 
 Identifier    ZNB-1985-40b-0615 
 Volume    40 
115Author    JohnJ. Eisch, AndrzejM. Piotrowski, AllenA. Aradi, Carl Krüger, MariaJ. Romão, D. Ruhr, F.R GRequires cookie*
 Title    Die oxidative Addition von NickeI(0)-KompIexen an Kohlenstoff-Kohlenstoff-Bindungen im Cyclobutadien. Zur Frage der Überführbarkeit von CycIobutadien-Nickel(O)-Komplexen in Nickelaringe* Oxidative Addition of Nickel(O) Complexes to Carbon-Carbon Bonds in Cyclobutadiene. The Question of the Interconvertibility of Cyclobutadiene-nickel(O) Complexes and the Nickelaring Systems  
 Abstract    Bis(triethylphosphine)(?7 4 -tetraphenylcyclobutadiene)nickel (4) was synthesized by the reduc-tion of (?7 4 -tetraphenylcyclobutadiene)nickel(II)bromide (3) with r-butyllithium in the presence of Et 3 P, and its structure was determined by X-ray crystallography. Furthermore, its reactivity towards CO, CH 3 C0 2 H, PhC=CPh, LiAlH 4 and 0 2 were investigated. l,l-Bis(triethylphos-phine)-2,3,4,5-tetraphenylnickelole (14) was synthesized from (E,E)-1,4-dilithio-l,2,3,4-tetraphenyl-l,3-butadiene (15) and bis(triethylphosphine)nickel(II)bromide. Since the resulting crystals of the nickelole were not suitable for X-ray structure determination, the compound was characterized by elemental analyses, spectral data and carbonylation to yield tetraphenylcyclo-pentadienone (6). Analogous reductions of (?; 4 -tetraphenylcyclobutadiene)nickel(II)bromide (3) in the presence of Ph 3 P or Ph 2 PCH 2 CH 2 PPh 2 , followed by carbonylation, led to 6 in 40% yield, demonstrating that about half of the cyclobutadiene rings in 3 undergo cleavage upon reduction to give the nickelole. Reactions of the dilithium reagent 15 with NiBr 2 complexed with Me 2 PCH 2 CH 2 PMe 2 , Ph 3 P or Et 2 PCH 2 CH 2 PEt 2 , led to the formation of thermolabile nickeloles, as demonstrated by carbonyla-tion which yielded 6. Warming of the nickeloles and subsequent treatment with CH 3 C0 2 H led to the formation of l,2,3,4,5,6,7,8-octaphenyl-l,3,5,7-octatetraene (8) and, in one case, octaphenyl-cyclooctatetraene (5). The relevance of these findings to the mechanism of the Reppe nickel-catalyzed oligomeriza-tion of alkynes is discussed. 
  Reference    Z. Naturforsch. 40b, 624—635 (1985); eingegangen am 15. Januar 1985 
  Published    1985 
  Keywords    Insertion Reaction, Oxidative Addition, Cyclobutadiene-Nickel(O) Complexes, Nickelacyclopentadiene, Nickelole 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0624.pdf 
 Identifier    ZNB-1985-40b-0624 
 Volume    40 
116Author    Johannes Reisch, H. Ranjith, W. DharmaratneRequires cookie*
 Title    A Convenient Synthesis of the 2-Diinethyl-2H-Chroinene-System  
 Abstract    -pyrano(3,2-c)-l-benzopyrano-5-one(2) and 4H-2,3-dihydro-3-methyl-2-methylene-furan-l-benzopyran-4-one (3), two new coumarin derivatives were synthesised from 4-hydroxycoumarin by treating with 3-chloro-3-methylbut-l-yne and 3-chlorobut-l-yne respec-tively, both reactions progressing via the phase-transfer catalysis. 
  Reference    Z. Naturforsch. 40b, 636—638 (1985); received December 30 1984 
  Published    1985 
  Keywords    2-Dimethyl-2H-Chromenes, Coumarin Derivatives, Phase-Transfer Catalysis 2, 2-Dimethyl-5H 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0636.pdf 
 Identifier    ZNB-1985-40b-0636 
 Volume    40 
117Author    MarioD. Gonzalez, Gerardo BurtonRequires cookie*
 Title    On the Elimination of the 3-Benzylthioenol Ether of Pregn-4-ene-3,20-dione by W-2 Raney Nickel  
 Abstract    Benzylthioenol Ether, Raney Nickel, 3-Benzylthiopregna-3,5-dien-20-one, Pregna-3,5-dien-20-one, Pregn-2-en-20-one 
  Reference    Z. Naturforsch. 40b, 639—644 (1985); received January 14 1985 
  Published    1985 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0639.pdf 
 Identifier    ZNB-1985-40b-0639 
 Volume    40 
118Author    V. Polyynes, Michael Barz, Gerhard HimbertRequires cookie*
 Title    Polyine, V [1] Synthese von (l,3-Alkadiinyl)thioether  
 Abstract    Lithium 4-thiobutadiynides, Ethynylation, Diacetylenic Thioethers By the reaction of (3,4,4-trichloro-3-buten-l-ynyl)thioethers 2 or of (pentachloro-1,3-butadienyl)thioethers 4 with the twofold or the threefold equimolar amount of /i-butyllithium the corresponding lithium butadiynides 5 are prepared. The treatment of these acetylides 5 with water, with the halides of some organyl groups or with chloral, phenylisocyanate, cyclohexyl-isothiocyanate and water furnishes the (butadiynyl)thioethers 6 a—f and 7 a—c. The reaction of the lithium butadiynide 5 a with cyanogen bromide and morpholine leeds via the bromoacetylene 8 to the (4-morpholinobutadiynyl)phenylthioether 9. 
  Reference    Z. Naturforsch. 40b, 645—650 (1985); eingegangen am 30. Dezember 1984 
  Published    1985 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0645.pdf 
 Identifier    ZNB-1985-40b-0645 
 Volume    40 
119Author    Wolfgang GienckeRequires cookie*
 Title    Synthese neuer 2-Dichlormethylen-thiazolidinon-Derivate Synthesis of New 2-Dichloromethylene-thiazolidinone Compounds  
 Abstract    2-Dichloromethylene-thiazolidinone Compounds Starting from the 2-trichloromethyl-thiazolidinones 3 and 4 syntheses of the 2-dichloromethy-lene-4-thiazolidinones 5 and the corresponding 1-oxides, 6, 9 and 10 are described. The base used in these elimination reactions is potassium-l,2,4-triazole. 
  Reference    Z. Naturforsch. 40b, 651—655 (1985); eingegangen am 22. November 1984 
  Published    1985 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0651.pdf 
 Identifier    ZNB-1985-40b-0651 
 Volume    40 
120Author    GerhardG. Habermehl, PeterE. HammannRequires cookie*
 Title    Rearrangement of 14/3-Hydroxy-12ß-sulfoxy-steroids to 13,17-Seco-12,17-cyclo-steroids; a 2D-NMR Analysis  
 Abstract    The rearrangement of 3-oxo-14/3-hydroxy-12/3-methanesulfoxy-card-20(22)-enolide and 14/3-hydroxy-12/3-methanesulfoxy-pregnane-3,20-dione during elimination of the sulfoxygroups was studied. By means of 2D-NMR analysis the structures were determined as 13,17-seco-12,17-cyclo-steroids. 
  Reference    Z. Naturforsch. 40b, 656—660 (1985); received November 14 1984 
  Published    1985 
  Keywords    13, 17-Decyclo-12, 17-cyclosteroids, Steroid Rearrangement, NMR Spectra 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0656.pdf 
 Identifier    ZNB-1985-40b-0656 
 Volume    40 
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