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Volume 74; Issue 5

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Helvetica Chimica Acta
Volume 74; Issue 5

Helvetica Chimica Acta

Volume 74; Issue 5

1

Masthead

Journal:

Helvetica Chimica Acta

Année:

1991

Fichier:

PDF, 29 KB

1991

2

Chiral Cooperativity: The Effect of Distant Chiral Centers in Ferrocenylamine Ligands upon Enantioselectivity in the Gold(I)-Catalyzed Aldol Reaction

Stephen D. Pastor, Antonio Togni

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 2.04 MB

english, 1991

3

Imidazole-Analogues of 6-Epicastanospermine and of 3,7a-Diepialexine

Andrzej Frankowski, Czeslawa Seliga, Daniel Bur, Jacques Streith

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 401 KB

english, 1991

4

Synthesis of the Bretonins, Polyolefinic Esterified Glyceryl Ethers of an Unidentified Sponge from the North-Brittany Sea: Absolute Configuration and Novel Structure Assignment

Ines Mancini, Graziano Guella, Francesco Pietra

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 692 KB

english, 1991

5

[5-Leucin]enkephalin-Related Glycoconjugates: Structurally Novel Agents Effective against HIV-1

Štefica Horvat, Lidija Varga, Jaroslav Horvat, Andreas Pfützner, Haryadi Suhartono, Helga Rübsamen-Waigmann

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 319 KB

english, 1991

6

Ionization Behavior and Ionization-Dependent Conformation of Raclopride, a Dopamine D2 Receptor Antagonist

Pierre-Alain Carrupt, Ruey-Shiuan Tsai, Nabil El Tayar, Bernard Testa, Tomas de Paulis, Thomas Högberg

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 778 KB

english, 1991

7

Synthesis, Isolation, and Full Spectroscopic Characterization of Eleven (Z)-Isomers of (3R,3′R)-Zeaxanthin

Gerhard Englert, Klaus Noack, Emil A. Broger, Ernst Glinz, Max Vecchi, Reinhard Zell

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 818 KB

english, 1991

8

Synthesis and X-Ray Crystal Structure of an Optically Pure Tripodal C3-Symmetric Tritertiary Phosphine Bearing Chirality on Phosphorus

Thomas R. Ward, Luigi M. Venanzi, Alberto Albinati, Francesca Lianza, Tobias Gerfin, Volker Gramlich, Gerardo M. Ramos Tombo

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 320 KB

english, 1991

9

The Lewis basicity of the [Pt3(μ-CO)3(PR3)3] clusters and the X-ray crystal structure of [{ZnI2}{Pt3(μ-CO)3(PPh(i-Pr)2)3}]

Andreas Stockhammer, Klaus-Hermann Dahmen, Tobias Gerfin, Luigi M. Venanzi, Volker Gramlich, Walter Fetter

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 225 KB

english, 1991

10

Stereo and Face Selectivity in Cycloadditions of 1,2,3-Trichloro-3-fluorocyclopropenes to Acyclic Dienes and Furans

Paul Müller, Gérald Bernardinelli, Jean Pfyffer, Jean-Pierre Schaller

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 504 KB

english, 1991

11

Ringerweiterung von 1,2-Thiazol-3(2H)-on-1,1-dioxiden und 3-Amino-2H-azirinen zu 4H-1,2,5-Thiadiazocin-6-on-1,1-dioxiden

Annette Rahm, Anthony Linden, Beverly R. Vincent, Heinz Heimgartner, Manfred Mühlstädt, Bärbel Schulze

Journal:

Helvetica Chimica Acta

Année:

1991

Fichier:

PDF, 531 KB

1991

12

New Polycyclic Compounds from Photochemical Rearrangements of Some Substituted 2-Azatricyclo[5.2.2.01,5]undeca-4,8,10-trien-3-ones

Tonya R. Mihova, Latchezar S. Trifonov, Valentin S. Dimitrov, Alexander S. Orahovats, Anthony Linden, Heinz Heimgartner

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 938 KB

english, 1991

13

Conformational Analysis of the cis- and trans-Isomers of FK506 by NMR and Molecular Dynamics

Dale F. Mierke, Peter Schmieder, Peter Karuso, Horst Kessler

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 1.03 MB

english, 1991

14

1,7-Dideaza-2′,3′-dideoxyadenosine: Syntheses of Pyrrolo[2,3-b]pyndine 2′,3′-Dideoxyribofuranosides and Participation of Purine N(1) during HIV-1 Reverse Transcriptase Inhibition

Frank Seela, Rainer Gumbiowski

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 720 KB

english, 1991

15

Zur Oxidation von 1,2-Thiazolen: Ein einfacher Zugang zu 1,2-Thiazol-3(2H)-on-1,1-dioxiden

Bärbel Schulze, Gisela Kirsten, Sabine Kirrbach, Annette Rahm, Heinz Heimgartner

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

german

Fichier:

PDF, 734 KB

german, 1991

16

Nitroacetyl Group as a Peptide Synthon: Synthesis of Dipeptides with an α,α-Bisallylglycine Residue at the N-Terminus

Sulur G. Manjunatha, Pabba Chittari, Srinivasachari Rajappa

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 644 KB

english, 1991

17

3′-Substituted and 2′,3′-Unsaturated 7-Deazaguanine 2′,3′-Dideoxynucleosides: Syntheses and Inhibition of HIV-1 Reverse Transcriptase

Frank Seela, Heinz-Peter Muth

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 659 KB

english, 1991

18

Photo-induced molecular transformations. Part 123. One-step synthesis of 1H-benz[f]indole-4,9-diones by a new regioselective photoaddition of 2-amino-1,4-naphthoquinone with various alkenes and its application to one-step synthesis of kinamycin skeleton

Kazuhiro Kobayashi, Hiroyasu Takeuchi, Shinzo Seko, Hiroshi Suginome

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 193 KB

english, 1991

19

Zur Synthese von Derivaten des Pyrido[1,2-a]azepins

Wolfram Maicr, Wolfgang Eberbach, Hans Fritz

Journal:

Helvetica Chimica Acta

Année:

1991

Fichier:

PDF, 406 KB

1991

20

Transesterifications with 1,8-Diazabicyclo[5.4.0]undec-7-ene/Lithium Bromide (DBU/LiBr) – Also Applicable to Cleavage of Peptides from Resins in Merrifleld Syntheses

Dieter Scebach, Adrian Thaler, Denis Blaser, Soo Y. Ko

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 1.16 MB

english, 1991

21

Aromatic nucleophilic substitution. Part 3. Preparation of novel 9-oxo-9H-thioxanthene- and 9-oxo-9H-xanthenedicarboximides and -dicarboxylates

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 544 KB

english, 1991

22

Regioselectivity, Stereoselectivity, and Isotopically Sensitive Branching in the Fe(I)-Mediated Dehydrogenation of Octane-1,8-diol in the Gas Phase

Tilmann Prüsse, Andreas Fiedler, Helmut Schwarz

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 442 KB

english, 1991

23

Dimeric Metal Complexes as Mediators for Radical CC Bond-Forming Reactions

Bernd Giese, Gebhard Thoma

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 327 KB

english, 1991

24

CC Bond Formation via Carbon-Centered Radicals Generated from Dicarbonyl(η5-cyclopentadienyl) organoiron Complexes

Bernd Giese, Gebhard Thoma

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 649 KB

english, 1991

25

Mitteilungen

Journal:

Helvetica Chimica Acta

Année:

1991

Langue:

english

Fichier:

PDF, 42 KB

english, 1991