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1977 (337)
41Author    Requires cookie*
 Title    Phosphororganische Derivate von Übergangsmetallcyanokomplexen, IV 1 Intermediärverbindungen aus sauren Phosphonium -cyano-kobaltaten(III)  
 Abstract    Organophosphorus Derivatives of Cyanom etalates, IV 1 Interm ediate Compounds from Phosphonium -hydrogen-cyano-cobaltates(III) S. P a p p u n d S. C z e g l É d i In stitu t für A llgem eine und A norganische Chemie der U n iversität für Chemische In d u strie V eszprem , U ngarn P hosphonium C yanocobaltate In term ed iates, C yanocobaltate In term ed iates The coordin atively unsaturated interm ediates prepared by therm al decom position of th e phosphonium hydrogen cyanocobaltates were in v estig a ted b y m agn etic m ethods, I R and visib le spectroscopy. Their reactions w ith am ines and phosphines yield n ovel preparable species. 
  Reference    (Z. Naturforsch. 32b, 167—171 [1977]; eingegangen am 17. Oktober 1976) 
  Published    1977 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0167.pdf 
 Identifier    ZNB-1977-32b-0167 
 Volume    32 
42Author    Z. NaturforschRequires cookie*
 Title    Reaktionen von 1.4-Dienen mit Metallkomplexen  
 Abstract    , II Darstellung und Röntgenstrukturanalyse von Chloro-(// ;-l-methylen-3-methylcycloliexyl)(triphen\lphosphin)palladium(II), (C8H13)PdClP(C6H5)3 Reaction of 1,4-Dienes w ith Metal Complexes, II Synthesis and X -ra y Structure Determination o f (rj3-1 -m ethylene-3-m ethylcy clohexyl)(triphenylphosphine)palladium (II), (C8H13)PdClP(C6H5)3 H a r t m u t Z e i n e r , R ic h a r d R a t k a und M a n f r e d L. Z ie g l e r 
  Reference    (Z. Naturforsch. 32b, 172 [1977]; eingegangen am 3. November 1976) 
  Published    1977 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0172.pdf 
 Identifier    ZNB-1977-32b-0172 
 Volume    32 
43Author    Requires cookie*
 Title    Interpretation of ESCA Chemical Shifts for 0-Arylenedioxy Chelates of Silicon  
 Abstract    R o b e r t C. G r a y a n d D a v i d M . H e r c u l e s Departm ent o f Chemistry, ESCA, (o-Arylenedioxy)siliconates ESCA d a t a o n t h e o -a r y le n e d io x y c h e la t e s o f s ilic o n h a v e b e e n c o r r e la t e d w ith d a t a o n o t h e r o rg a n o s ilic o n c o m p o u n d s u s in g P a u l i n g e le c t r o n e g a t iv i t i e s . The d a t a d o n o t s u p p o r t p n -> d n b a c k b o n d in g in t h e a n io n ic c h e la te s . 
  Reference    (Z. Naturforsch. 32b, 178—180 [1977]; received August 18 1976) 
  Published    1977 
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 Identifier    ZNB-1977-32b-0178 
 Volume    32 
44Author    M. M., P. Či, S. InRequires cookie*
 Title    The Preparation of Some Unsymmetrically 2,2' -Disubstituted Stilbenes  
 Abstract    The new unsym m etrically 2,2'-disubstituted stilbenes with NO2 , F, Cl, Br, OCH3 , CH3 and NH2 groups as substituents have been prepared by W it t ig or P e r k i n reactions. The compounds 1 -8 were prepared due to the studies o f fragm entation on electron impact, photochem istry and photoelectron spectroscopy. Their geometrical configuration has been established by X H NMR and IR spectra. 
  Reference    (Z. Naturforsch. 32b, 181—183 [1977]; received October 18 1976) 
  Published    1977 
  Keywords    2, 2'-Disubstituted Stilbenes, Synthesis, Configuration 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0181.pdf 
 Identifier    ZNB-1977-32b-0181 
 Volume    32 
45Author    Requires cookie*
 Title    Synthesen von Heterocyclen, 2031 Zur Chemie der vicinalen Triketone, X 1 Über Reaktionen von vicinalen Triketonen mit Aminopyridinen Syntheses o f Heterocycles, 2 0 3 1 The Chemistry of Vicinal Triketones, X 1 R eactions from Vicinal Triketones with Aminopyridines  
 Abstract    H e l g a W it t m a n n , H o s s e in T a l e b a n u n d R e in h a r d H e r zo g 2,3-D ihydro-l,2,3-trioxo-phenalene, l,2,3-Trioxo-2,3,6,7-tetrahydro-lH ,5H -benzo[ij]quinolizine, Aminopyridines, Naphtho-pyrido-benzoxazine, 2-Pyridylim ino-1,3-diones 
  Reference    (Z. Naturforsch. 32b, 184—186 [1977]; eingegangen am 15. Oktober 1976) 
  Published    1977 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0184.pdf 
 Identifier    ZNB-1977-32b-0184 
 Volume    32 
46Author    Requires cookie*
 Title      
 Abstract    The synthesis of specifically labelled (D, 180) cardenolides is described. Darstellung von spezifisch D-und 180-markierten Cardenoliden Im Rahmen unserer Untersuchungen über das Fragmentierungsverhalten von Steroiden wurde eine Reihe spezifisch D-bzwr. 180-markierter Cardenolide dargestellt. Die Synthesewege, die sich auch zum gezielten Einbau strahlender Isotope eignen, sind so angelegt, daß D bzw. 180 möglichst spät eingeführt und durch nachfolgende Schritte nicht wieder (partiell) eliminiert bzw. im Molekül unspezifisch verteilt wird. Hierfür mußten in der Literatur beschriebene Verfahren z.T. abgewan­ delt werden. 
  Reference    (Z. Naturforsch. 32b, 187—192 [1977]; eingegangen am 4. Oktober 1976) 
  Published    1977 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0187.pdf 
 Identifier    ZNB-1977-32b-0187 
 Volume    32 
47Author    Requires cookie*
 Title    Investigations of Quaternary Pyridinium -Salts, V I 1 Reactions of Quaternated Pyridines w ith the Trichloromethylanion  
 Abstract    The method to generate the trichloromethylanion from chloroform and bariumliydroxide was used to prepare some substituted trichlorom ethyl-l,2-dihydropyridines and trichloro-azabicyclo[4,1,0]heptenes. 
  Reference    (Z. Naturforsch. 32b, 193—199 [1977]; eingegangen am 4. Oktober 1976) 
  Published    1977 
  Keywords    Pyridinium-Salts, Insertion Reaction, Azabicyclo[4, l, 0]heptene 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0193.pdf 
 Identifier    ZNB-1977-32b-0193 
 Volume    32 
48Author    B. G. Chatterjee, D. P. SahuRequires cookie*
 Title    A General and Convenient Synthesis of 3,5-Diaryl-2-(3H)-oxazolones  
 Abstract    A convenient and general route to the synthesis of 3,5-diaryl-2-(3H)-oxazolones has been developed. A number of hitherto unreported oxazolones have been prepared in almost quantitative yields. The structure of all these compounds have been characterised by IR, and elemental analysis and couple ofthem by NMR spectra. Attempt to extend this novel method to the synthesis of higher ring homologue, 1,3-oxazine, however, has not met with success. 
  Reference    (Z. Naturforsch. 32b, 200—204 [1977]; received September 15 1976) 
  Published    1977 
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 Identifier    ZNB-1977-32b-0200 
 Volume    32 
49Author    Requires cookie*
 Title    Photolysis (A = 185 nm) of Liquid Acetaldehyde Dimethyl Acetal  
 Abstract    H e in z -P e t e r S c h u c h m a n n a n d C l e m e n s v o n S o n n t a g In stitut fü r Strahlenchemie im M ax-Planck-Institut für Kohlenforschung, Mülheim a. d. R uhr Deaerated liquid acetaldehyde dimethyl acetal has been photolyzed at X = 185 nm, and 28 products have been determined. The m ajor ones with their quantum yields are: methanol (0.59), methane (0.26), ethyl methyl ether (0.17), m ethyl vin yl ether (0.16), m ethyl form ate (0.14), ketene dimethyl acetal (0.1), ethane (0.06), hydrogen (0.06), and acetaldehyde (0.06). The m ajor prim ary processes are suggested to be the scission o f the C-OCH3 bonds (homolytic and molecular) and o f the O-CH3 bonds (homolytic). Minor processes are hydrogen elimination reactions and the scission o f the C-CH3 bond. 
  Reference    (Z. Naturforsch. 32b, 205 [1977]; received October 8 1976) 
  Published    1977 
  Keywords    UV, GC-MS, Quantum yields, Radical Reactions, Fragm entation Processes 
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 Identifier    ZNB-1977-32b-0205 
 Volume    32 
50Author    Requires cookie*
 Title    O' I (CH3 )3C-CH-OCH3 (CH3 )3C-+ CHO-OCHs (i) A  
  Reference    (Z. Naturforsch. 32b, 209 [1977]) 
  Published    1977 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0209.pdf 
 Identifier    ZNB-1977-32b-0209 
 Volume    32 
51Author    Requires cookie*
 Title    Radiation Chemistry of Carbohydrates, X* y-Radiolysis of Crystalline D-Glucose and D-Fructose  
 Abstract    i z d a r o g l u , D. H e n n e b e r g , K . N e u w a l d , G. S c h o m b u r g and C. v o n S o n n t a g In stitu t für Strahlenchemie im M ax-Planck-Institut für Kohlenforschung, Mülheim a. d. Ruhr a-D-Glucose and ß-D-fructose were y-irratiated in the solid (polycrystalline) state at room temperature at doses o f 3.5 • 1020-4 .2 • 1021 eV g-1 (dose rate 1.16 • 1018 eV g_1 min_1). Carbohydrate products containing < 6 carbon atoms were identified and their G-values (in parentheses) measured. Glucose: Dihydroxyacetone (1) (0.05), 3-deoxy-tetrose (2) (O.OI5), l,4-dideoxy-2-pentu-lose (3) (0.05), 2,4-dideoxy-pentose (4) (O.O8 5), 2,4-dideoxy-pentonic acid (5), 2,3-dideoxy-pentos-4-ulose (6) (together 0.03a), threose (7), erythrulose (8), erythrose (9), erythronic acid (10) (together 0.04), l-deoxy-2-pentulose (11) (0.005), 2-deoxy-ribose (12) (0.25), 3-deoxy-pentosulose (13) (0.02), 3,5-dideoxy-hexonic acid (14) (0.02), 2,3-dideoxy-hexonic acid (15) (0.01), arabinose (16) (0.25), ribose (17), ribonic acid (18) (together 0.02), 2-deoxy-2-C-hydroxymethyl-pentonic acid (19) (0.06), 5-deoxy-gluconic acid (20), 2-deoxy-5-keto-glucose (21), 2-deoxy-gluconic acid (22), 2-deoxy-3-keto-glucose (23), 3-deoxy-glucosone (24), 3-deoxy-gluconic acid (25), 3-deoxy-4-keto-glucose (26), 3-deoxy-mannonic acid (27) (together 0.4). Identified but nor measured quantitatively were glucosone (28), 3-keto-glucose (29), 4-keto-glucose (30), 5-keto-glucose (31) and gluconic acid (32). G(H2) = 5.75; G (C02) = 0.7. Fructose: 7-9 (together 0.65), 3-deoxy-pentonic acids (37), 3-deoxy-pentosulose (38) (together 0.3), arabonic acid (39) (0.1), 18 (0.05), 6-deoxy-2,5-hexodiulose (40) (40). Identified but not measured quantitatively were glyceraldehyde (34), butanone-(3)-diol-(l,2) (35) and 2 -and 3-deoxy-hexodiuloses. G(H2) = 4.75, G (C02) = 0.05. Reaction schemes are proposed to account for the form ation of the products. The scission of the hemiacetal bond and of the C-H and C-C bonds next to it appears to be typical for solid state irradiations. The formation of deoxy-compounds is observed both in the solid state and in aqueous solution. The form ation o f dideoxy-compounds is only prominent in the solid state. In polycrystalline fructose a chain reaction is induced leading to 6-deoxy-2,5-hexodiulose (40). 
  Reference    (Z. Naturforsch. 32b, 213—224 [1977]; received October 27 1976) 
  Published    1977 
  Keywords    GC-MS, G-Values, Radical Reactions, Chain Reaction 
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 Identifier    ZNB-1977-32b-0213 
 Volume    32 
52Author    V.K G, A.N BRequires cookie*
 Title    Infrared Spectral Studies of Metal Chelates of 2-Furan Carboxaldoxime  
 Abstract    2-Furancarboxaldoxime Complexes, IR 
  Reference    (Z. Naturforsch. 32b, 225—228 [1977]; received August 11 1976) 
  Published    1977 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0225.pdf 
 Identifier    ZNB-1977-32b-0225 
 Volume    32 
53Author    Requires cookie*
 Title    Zur Synthese von phosphorhaltigen Heterocyclen mit metallorganischen Verbindungen Synthesis of Phosphorus Containing Heterocycles with Metal Organic Compounds  
 Abstract    H e r b e r t W. R o e s k y * u n d H a m i d Z a m a n k h a n CHaP(S)(NCO)2 reacts with [(CH3)3Si]2N-CH3 , [(CH3)3SiNCH3]2CO and [(CH ^Sn^N 
  Reference    (Z. Naturforsch. 32b, 229—233 [1977]; eingegangen am 29. September 1976) 
  Published    1977 
  Keywords    Cyclic Compounds, Phosphorus, Metal Organic D erivates 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0229.pdf 
 Identifier    ZNB-1977-32b-0229 
 Volume    32 
54Author    Requires cookie*
 Title    Directed Synthesis of Sulfinato-0 and -S Complexes of Some Transition Metals. X V I I I 1 Synthesis of a Sulfinato-0 Complex and Ionization Isomerism with P allad ium (II)2  
 Abstract    I n g o -Pe t e r L o r e n z , E k k e h a r d L i n d n e r u n d W o l f g a n g R e u t h e r 
  Reference    (Z. Naturforsch. 32b, 234—235 [1977]; eingegangen am 3. Nov. 1976) 
  Published    1977 
  Keywords    Sulfinato-0 Complex, Palladium (II), Ionization Isomerism, IR The sulfinato-0 complex 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0234_n.pdf 
 Identifier    ZNB-1977-32b-0234_n 
 Volume    32 
55Author    D., R., T. A. Sh, W. ++Requires cookie*
 Title    Phosphazenylcyclophosphazene Syntheses U sing Silylmonophosphazenes * > *  
 Abstract    The reactions of the lialogenocy clotri -phosphazatrienes N 3 P 3 F 6 and N 3 P 3 CI6 with the reagentsMesSiR [R = NP(NMe2)3 ,NPMe3 , NPMe2 Ph, NPMePh2, N P Ph3, and N P (O Et)3] are discussed, and conclusions are drawn about some of the factors controlling the course and rate of these reactions. Some novel phosphazenyl-derivatives, N 3 P3 X 5 R [X = F or Cl, R = NP(NMe2)3; X = F, R = N P (O Et)3] are reported. 
  Reference    (Z. Naturforsch. 32b, 236—237 [1977]; received November 22 1976) 
  Published    1977 
  Keywords    Halogenocyclotriphosphazatrienes, Phosphazenylcyclophosphazenes, Silylmonophosphazenes, Nucleophilicity, Reactivity 
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 Identifier    ZNB-1977-32b-0236_n 
 Volume    32 
56Author    Requires cookie*
 Title    Übergangsmetall-Carben-Komplexe, C I I I  
 Abstract    Z u r R e ak tio n von Pentacarbonyl(m ethoxyphenylcarben)chrom (0) m it /?-D iketonen Transition Metal Carbene Complexes, C I I I 1 On the Reaction of Pentacarbonyl(methoxyphenylcarbene)chromium(0) with ^-Diketones E r n s t O t t o F i s c h e r u n d T a s s i l o S e l m a y r Pentacarbonyl (methoxy phenylcarbene)chromium (0), Configurational Isomers Pentacarbonyl(methoxyphenylcarbene)-chromium(O) and /S-diketonesIUCOCH^COR2 (R 1, R 2 = CH3) CF3, N H C O N H) react on heating to give the meso-, RR-and SS-configurational isomers of 1 ,2 -dimethoxy-1 , 2 -diphenylethane. 
  Reference    (Z. Naturforsch. 32b, 238—239 [1977]; eingegangen am 11. Nov. 1976) 
  Published    1977 
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 Identifier    ZNB-1977-32b-0238_n 
 Volume    32 
57Author    N.Requires cookie*
 Title    Exchange o f a H A tom s for D euterium and T ritium in Cyclic N-Nitrosamines  
  Reference    (Z. Naturforsch. 32b, 240 [1977]; received October 20 1976) 
  Published    1977 
  Keywords    Exchange, Deuterium, Tritium, Di-N-nitrosohomo-piperazine, Di-N-nitroso-2, 6-dimethylpiperazine 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0240_n.pdf 
 Identifier    ZNB-1977-32b-0240_n 
 Volume    32 
58Author    Electrochemical Syntheses, X.Requires cookie*
 Title    Elektrochemische Synthesen, XI1 Die anodische Reaktion verzweigter Alkane  
 Abstract    The A nodic Reaction o f Branched Alkanes H e i n z P. F r i t z u n d T h o m a s W ü r m i n g h a u s e n Anodic Oxidation, Branched Alkanes, Reactivity of Alkanes Preparative electrochemical oxidation of branched alkanes in trifluoroacetic acid yields -as function of the applied potential — mono-or bifunctionalized derivatives. Esters with rearranged skeleton (hydride or methyl shift) suggest carbenium ion intermediates. These are generated by oxidative elimination of a proton or fragmentation. A method is described to measure small differences in reactivity of alkanes. 
  Reference    (Z. Naturforsch. 32b, 241—248 [1977]; eingegangen am 27. Oktober 1976) 
  Published    1977 
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 Identifier    ZNB-1977-32b-0241 
 Volume    32 
59Author    Requires cookie*
 Title    Über die Ladungsverteilung in Stickstoffverbindungen. ESCA-Untersuchungen an formylierten und acetylierten Ammoniak-Derivaten sowie an alkylierten und merkurierten Ammoniumsalzen Charge Distribution in Nitrogen Compounds. ESCA Study of Formyl and Acetyl Derivatives of Ammonia and of Alkylated and Mercurated Ammonium Salts  
 Abstract    X-ray, Ammonia Derivatives, Ammonium Salts Nitrogen 1 s energies are measured by ESC A for a series of formyl and acetyl derivatives of ammonia and of some alkylated and mercurated ammonium salts. For convenient use in chemical structure analysis the binding energy shifts are correlated with a charge parameter obtained from electronegativity considerations. The shifts are also analyzed in terms of group electronegativities. Comparison between the two classes of compounds gives evidence for ^-bonding in formyl and acetyl derivatives of ammonia. 
  Reference    (Z. Naturforsch. 32b, 249—253 [1977]; eingegangen am 21. Oktober 1976) 
  Published    1977 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0249.pdf 
 Identifier    ZNB-1977-32b-0249 
 Volume    32 
60Author    Requires cookie*
 Title     
 Abstract    e aktio nen des 2.2.4.4.6-Pentaclilor-2.4-<liphospha-1.3.5-s-triazins Reactions of 2,2,4,4,6-Pentachloro-2,4-diphospha-l,3,5-s-triazine E . F l u c k u n d E . S c h m id Synthesis, N M R , Amino Derivatives of 2,4-Diphospha-l,3,5-s-triazine 
  Reference    (Z. Naturforsch. 32b, 254—256 [1977]; eingegangen am 21. Oktober 1976) 
  Published    1977 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0254.pdf 
 Identifier    ZNB-1977-32b-0254 
 Volume    32 
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