Works matching IS 0018019X AND DT 1973 AND VI 56 AND IP 8
Results: 48
Über Pterinchemie. 45. Mitteilung. Eine neue und eindeutige Synthese isomerenfreier Pteroyl-λ-L-glutamyl-L-glutaminsäure.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2911, doi. 10.1002/hlca.19730560830
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Synthèse de sucres ramifiés et de sucres aminés ramifiés. Communication préliminaire.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2879, doi. 10.1002/hlca.19730560823
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Masthead.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. fmi, doi. 10.1002/hlca.19730560801
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Sur les dérivés de la fluorénone VII. Bifluorényles et bifluorénonyles.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3044, doi. 10.1002/hlca.19730560841
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Chemistry of Succinylsuccinic Acid Derivatives. Part II. The crystal and molecular structure of diethyl succinylsuccinate.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2766, doi. 10.1002/hlca.19730560812
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The Mode of Incorporation of Farnesyl Pyrophosphate into Verrucarol. Preliminary communication.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2946, doi. 10.1002/hlca.19730560834
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The MO-theoretical Description of Optical Properties in Polymers. Selection rules due to cyclic symmetry.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2706, doi. 10.1002/hlca.19730560805
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Kinetische Untersuchung der durch Imidazol katalysierten Acylübertragung von Thioestern auf Cyanessigester, einer Modellreaktion zur enzymatischen Knüpfung von C, C-Bindungen.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3059, doi. 10.1002/hlca.19730560845
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Nachweis von π → σ-Umlagerungen bei Ligandenverdrängungsreaktionen von π-Allyl-π-cyclopentadienyl-Palladiumkomplexen.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2819, doi. 10.1002/hlca.19730560816
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Absolute Konfiguration von β,ε-Carotin-2-ol, β,β-Carotin-2-ol und β,β-Carotin-2,2′-diol.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2899, doi. 10.1002/hlca.19730560827
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Die durch Silberionen katalysierte Umlagerung von Propargyl-phenyläther.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2981, doi. 10.1002/hlca.19730560838
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Nucleophilic Reactions at Tertiary Carbon. Part 2. σ- and π-routes to the 8-hydrindanyl cation.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2733, doi. 10.1002/hlca.19730560809
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Sur les dérivés de la fluorénone VI Les acides bromo-3-fluorénonecarboxylique-2 et bromo-2-fluorénonecarboxylique-3 et la bromo-3-méthyl-4-fluorénone.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3039, doi. 10.1002/hlca.19730560840
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Chemistry of Succinylsuccinic Acid Derivatives. Part I. On the photodimerization of diethyl succinylsuccinate.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2760, doi. 10.1002/hlca.19730560811
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Radiolyse des hydrocarbures. 21<sup>e</sup> communication. Mécanismes radicalaires et non-radicalaires dans les n-alcanes en phase liquide.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2861, doi. 10.1002/hlca.19730560822
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Aromatische [1,5s]-sigmatropische H-Verschiebungen in Arylallenen.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2924, doi. 10.1002/hlca.19730560833
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Photochemische Reaktionen. 75. Mitteilung. Die UV.-Bestrahlung von 3β-Acetoxy-18-dimethoxy-20-oxo-Δ<sup>16</sup>-5α-pregnen.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2698, doi. 10.1002/hlca.19730560804
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The Formation of Cyclic Ethers by Intramolecular Addition and Substitution Processes in the Reaction of Olefinic Alcohols with Lead Tetraacetate. Part I. Preliminary communication.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3056, doi. 10.1002/hlca.19730560844
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Acetolysis of 4- endo-diazoacetyl-bicyclo[3.1.0]hexene: a new synthesis of semibullvalene. Preliminary communication.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2845, doi. 10.1002/hlca.19730560819
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On the Correlation between Ionization Potentials and Excitation Energies, part III: Pyrazine.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2889, doi. 10.1002/hlca.19730560826
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α-Chlor-nitrone VI: Ag<sup>+</sup>-induzierte Reaktion mit Acetylen-derivaten. Eine neue Bildungsweise von α,β-ungesättigten Carbonylsystemen Über synthetische Methoden, 10. (vorläufige) Mitteilung.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2975, doi. 10.1002/hlca.19730560837
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Nucleophilic Reactions at Tertiary Carbon. Part 1. The 1,2-dimethyl-1-cyclohexyl cation.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2723, doi. 10.1002/hlca.19730560808
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Errata.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3139, doi. 10.1002/hlca.19730560848
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Umwandlung von 6-Methylen-tricyclo[3.2.1.0<sup>2,7</sup>]oct-3-en-8-onen in Polymethyltropyliumsalze.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2796, doi. 10.1002/hlca.19730560815
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Nucleophilic Reactions at Tertiary Carbon. Part 3. σ- and π-routes to the 9-decalyl cation.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2747, doi. 10.1002/hlca.19730560810
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Eine neue Synthese des 3-[3,4-Dihydroxy-phenyl]-<sub>L</sub>-alanins (<sub>L</sub>-DOPA) aus <sub>L</sub>-Tyrosin.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2857, doi. 10.1002/hlca.19730560821
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De la chimie des ptérines. 47<sup>e</sup> communication. Une confirmation de l'existence de dihydroptérines quinoïdiques: formation d'amino-2-alloxane pendant l'oxydation de tétrahydroptérines.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2920, doi. 10.1002/hlca.19730560832
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Isolierung und Konstitutionsermittlung von Chrysodin.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2694, doi. 10.1002/hlca.19730560803
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Heterotricyclodecanes XVII. 2,7-Dioxa-twist-4-ene and 2,7-dioxa-twista-4,9-diene.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3054, doi. 10.1002/hlca.19730560843
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3-Amino-3-desoxyverbindungen von Uzarigenin, Oleandrigenin, Gitoxigenin und Digoxigenin. Partialsynthetische Versuche in der Reihe der Herzgifte, 6. Mitt.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2782, doi. 10.1002/hlca.19730560814
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Zur Photochemie von Δ<sup>1,9</sup>-10-Methyl-2-octalon.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2884, doi. 10.1002/hlca.19730560825
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α-Chlor-nitrone V: Substitutionsreaktionen an Olefin- und Benzolderivaten. Eine Methode zur Darstellung von β,γ-un-gesättigten und β- arylsubstituierten Aldehyden. Stereospezifische Bildung von tetra-alkylsubstituierten Olefindoppelbindungen. Über synthetische Methoden, 9. (vorläufige) Mitteilung
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2961, doi. 10.1002/hlca.19730560836
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Die Isolierung weiterer Alkaloide aus Pleiocarba talbotii W ERNHAM. 150. Mitteilung über Alkaloide.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2719, doi. 10.1002/hlca.19730560807
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Mitteilungen - Communications.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3072, doi. 10.1002/hlca.19730560847
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- Article
The Stereoselectivity of Ketone Reduction with Sporotrichum Exile. Resolution of cis- and trans-2-benzoyloctahydro-6(2 H)-isoquinolones.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2834, doi. 10.1002/hlca.19730560818
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Über Pterinchemie. 44. Mitteilung. Eine eindeutige Synthese isomerenfreier Folsäure.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2905, doi. 10.1002/hlca.19730560829
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Über die Hydrolyse von Eisen(III)Salzlösungen. I. Die Hydrolyse der Lösungen von Eisen(III)chlorid.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2847, doi. 10.1002/hlca.19730560820
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Über Pterinchemie. 46., vorläufige Mitteilung. Identifizierung von substituierten Tetrahydropterinen durch Gas-Chromatographie und Massenspektrometrie.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2919, doi. 10.1002/hlca.19730560831
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Amino-nucléosides IV (Amino-3-désoxy-3-érythrofurannosyl)-9-adénine.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2689, doi. 10.1002/hlca.19730560802
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Contribution à la phytochimie du genre Gentiana III. Etude des composés flavoniques et xanthoniques dans les feuilles de Gentiana lutea L. (2me communication).
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3050, doi. 10.1002/hlca.19730560842
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Chemistry of Succinylsuccinic Acid Derivatives. Part III. The Crystal and Molecular Structure of anti-Tricyclo[4.4.0<sup>1,6</sup>.0<sup>7,12</sup>]-1,4,7,10-tetraethoxycarbonyl-3,6,9,12-tetrahydroxy-dodeca-3,9-diene, C<sub>24</sub>H<sub>32</sub>O<sub>12</sub>, a Photodimer of Diethyl Succinylsuccinate
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2772, doi. 10.1002/hlca.19730560813
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Stereospecific Synthesis of a 9, 11, 12, 13, 13a, 14-hexahydro-dibenzo( f, h)pyrrolo(1,2- b)isoquinoline-alkaloid. Preliminary communication.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2882, doi. 10.1002/hlca.19730560824
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α-Chlor-nitrone IV: Zur Stereochemie der λ-Lacton-Synthese und eine Methode zum Aufbau von α-Methyliden-λ-lactonen aus Olefinen. Über synthetische Methoden, 8. (vorläufige) Mitteilung.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2950, doi. 10.1002/hlca.19730560835
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C(8) Epimeric 8-Hydroxy-erythromycins-A.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2711, doi. 10.1002/hlca.19730560806
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Erratum.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3072, doi. 10.1002/hlca.19730560846
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Partialsynthese von Bufarenogin und Argentinogenin. Über Bufadienolide, 42. Mitteilung.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2827, doi. 10.1002/hlca.19730560817
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Isolierung und Strukturaufklärung von 11-Desacetoxy-wortmannin.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 2901, doi. 10.1002/hlca.19730560828
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[4+2]-Cycloadditionen von 1,2-Dicyanocyclobuten und seine thermische Ringöffnung zum 2,3-Dicyanobutadien-1,3.
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- Helvetica Chimica Acta, 1973, v. 56, n. 8, p. 3004, doi. 10.1002/hlca.19730560839
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