Works in Helvetica Chimica Acta, 1984, Vol 67, Issue 7

Results: 43

A New Pyranocoumarin Diester from Polygala paniculata L.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1729, doi. 10.1002/hlca.19840670710

By:

Hamburger, Matthias;
Hostettmann, Kurt;
Stoeckli-Evans, Helen

Publication type:

Article

Preparation by yeast reduction and determination of the sense of chirality of enantiomerically pure ethyl (−)-4,4,4-trichloro-3-hydroxy- and (+)-4,4,4-trifluoro-3-hydroxybutanoate.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1843, doi. 10.1002/hlca.19840670721

By:

Seebach, Dieter;
Renaud, Philippe;
Schweizer, W. Bernd;
Züger, Max F.;
Brienne, Marie-Josèphe

Publication type:

Article

Benz[ cd]indoles. Part III. A New Stereospecific Synthesis of Dihydrolysergic Acid and an Entry to 14-Substituted Derivatives.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1942, doi. 10.1002/hlca.19840670732

By:

Haefliger, Walter E.

Publication type:

Article

The Persistence of Ribbon Orbitals in Polycyclic Alkanes.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1681, doi. 10.1002/hlca.19840670703

By:

Heilbronner, Edgar;
Honegger, Evi;
Zambach, Werner;
Schmitt, Peter;
Günther, Harald

Publication type:

Article

Mitteilungen - Communications.

Published in:: Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 2029, doi. 10.1002/hlca.19840670743
Publication type:: Article

Experiments on the total synthesis of Lysolipin I. Part III. Preparation and transformations of substituted 1,2,3,4-Tetrahydrodibenzofuran-1-ones.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1767, doi. 10.1002/hlca.19840670714

By:

Duthaler, Rudolf O.;
Scherrer, Veronica

Publication type:

Article

Rearrangement of Derivatives of 1,3-Dithian-5-amineinto Bicyclic 2-Thiazolidines. Crystal Structures of cis- and trans-1-(2-Aryl-1,3-dithain-5-yl)-2-thioureas and cis- and trans-5-Aryl-3-imino-7,7a-dihydro-1 H,3 H,5 H-thiazolo[3,4- c]thiazoles.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1827, doi. 10.1002/hlca.19840670720

By:

Borgulya, Janos;
Daly, John J.;
Schönholzer, Peter;
Bernauer, Kerl

Publication type:

Article

Synthesis of aristoteline-type alkaloids. Part II. The structure of neohobartine, a side product of the hobartine-aristoteline transformation.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1878, doi. 10.1002/hlca.19840670725

By:

Borschberg, Hans-Jürg

Publication type:

Article

Errata.

Published in:: Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 2028, doi. 10.1002/hlca.19840670742
Publication type:: Article

Electrostatic Defromation Properties in the Crystal Structure of Tricyclo[4.4.1.01,6]undeca-2,4,7,9-tetraene-11,11-dicarbonitrile.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1707, doi. 10.1002/hlca.19840670707

By:

Bianchi, Riccardo;
Pilati, Tullio;
Simonetta, Massimo

Publication type:

Article

Inductivity and Bridging in 2-Bicyclo[2.2.2]octyl Cations. Polar Effects, Part 11.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1906, doi. 10.1002/hlca.19840670729

By:

Grob, Cyril A.;
Sawlewicz, Pawel

Publication type:

Article

Bestimmung des Aggregationsgrads lithiumorganischer Verbindungen durch Kryoskopie in Tetrahydrofuran.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1972, doi. 10.1002/hlca.19840670736

By:

Bauer, Walter;
Seebach, Dieter

Publication type:

Article

Photoreaction of ( RS, SR)-3-Phenyl-6-hepten-2-ol. Benzene-Olefin Cycloadditions as a Synthetic Route to [5.5.5.5] Fenestranes. Part III.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1930, doi. 10.1002/hlca.19840670731

By:

Mani, Jürg;
Cho, Jung-Hyuck;
Astik, Rameshchandra R.;
Stamm, Erich;
Bigler, Peter;
Meyer, Veronika;
Keese, Reinhart

Publication type:

Article

Studies on the Stereochemistry of 2-(Nitromethylidene)-Heterocycles.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1669, doi. 10.1002/hlca.19840670702

By:

Rajappa, Srinivasachari;
Nagarajan, Kuppuswamy;
Venkatesan, Kailasam;
Kamath, Nirupa;
Padmanabhan, Vipanjeri Madabhusi;
von Philipsborn, Wolfgang;
Chen, Ban Chin;
Müller, Raffaelo

Publication type:

Article

Synthesis, Structure, and Redox Chemistry of a Vitamin-B12s-Related Macrocyclic Complex of Cobalt(I).

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1801, doi. 10.1002/hlca.19840670718

By:

Walder, Lorenz;
Rytz, Gerhard;
Vögeli, Ulrich;
Scheffold, Rolf;
Engel, Peter

Publication type:

Article

Experiments on the total synthesis of Lysolipin I. Part II. Michael addition of 1,3-cyclohexanedione to quinone acetals.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1755, doi. 10.1002/hlca.19840670713

By:

Duthaler, Rudolf O.;
Wegmann, Urs H.-U.

Publication type:

Article

Metal complexes with macrocyclic ligands. Part XX. Influence of coordinated ligands onto the complexation rate of Ni2+ with 1,4,8,11-tetraazacyclotetradecane.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1868, doi. 10.1002/hlca.19840670724

By:

Wu, Yi-he;
Kaden, Thomas A.

Publication type:

Article

Total Synthesis of (±)-Clovene. On the Stereoelectronic Requirements of the α-Alkynone Cyclisation.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1963, doi. 10.1002/hlca.19840670735

By:

Ackroyd, John;
Karpf, Martin;
Dreiding, André S.

Publication type:

Article

Total Synthesis of (±)-2-Pupukeanone.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1702, doi. 10.1002/hlca.19840670706

By:

Fráter, Georg;
Wenger, Jean

Publication type:

Article

Deuterierung von Betanidin und Indicaxanthin, ( E/Z)-Stereoisomerie in Betalainen.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1793, doi. 10.1002/hlca.19840670717

By:

Wyler, Hugo;
Dreiding, André S.

Publication type:

Article

Light-induced Dehydrodimerization of 3-Hydroxypyrroles.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1957, doi. 10.1002/hlca.19840670734

By:

Ghaffari-Tabrizi, Ramin;
Margaretha, Paul;
Schmalle, Helmut W.

Publication type:

Article

Electrochemical Synthesis of the Sex Attractant Pheromone of the Housefly: ( Z)-9-Tricosene.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1698, doi. 10.1002/hlca.19840670705

By:

Yadav, Ashok K.;
Tissot, Paul

Publication type:

Article

Synthese des Dysidins.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1783, doi. 10.1002/hlca.19840670716

By:

Köhler, Hermann;
Gerlach, Hans

Publication type:

Article

Komplementär diastereoselektive Cobalt-Methylierungen des Vitamin-B12-Derivates «Cobester».

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1891, doi. 10.1002/hlca.19840670727

By:

Kräutler, Bernahard;
Caderas, Christian

Publication type:

Article

Mechanismus der decarboxylativen Dimerisierung von Maleinsäureanhydrid zu Dimethylmaleinsäureanhydrid unter Einfluss von 2-Aminopyridin.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1897, doi. 10.1002/hlca.19840670728

By:

Baumann, Marcus E.;
Bosshard, Hans;
Breitenstein, Werner;
Rihs, Grety;
Winkler, Tammo

Publication type:

Article

A New Base-Labile Anchoring Group for Polymer-Supported Peptide Synthesis.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 2009, doi. 10.1002/hlca.19840670739

By:

Mutter, Manfred;
Bellof, Dieter

Publication type:

Article

Triaziridines. Part III. Triaziridine, azimine, and triazene: A SCF study of the energy and structure of N3H3-isomers.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1918, doi. 10.1002/hlca.19840670730

By:

Nguyen, Minh-Tho;
Kaneti, Jose;
Hoesch, Lienhard;
Dreiding, André S.

Publication type:

Article

Novel Variant of the Tricyclooctanone Approach to Cyclopentanoid Natural Products. Synthesis of (±)-Coriolin. Preliminary Communication.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 2023, doi. 10.1002/hlca.19840670741

By:

Demuth, Martin;
Ritterskamp, Peter;
Schaffner, Kurt

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1984, v. 67, n. 7, p. fmi, doi. 10.1002/hlca.19840670701
Publication type:: Article

Photochemical reactions. 140th Communication. Acid-catalyzed rearrangement and electron transfer photooxygenation of cyclopropanols and their silyl ethers.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1748, doi. 10.1002/hlca.19840670712

By:

Scheller, Markus E.;
Mathies, Peter;
Petter, Walter;
Frei, Bruno

Publication type:

Article

Bicyclo[2.2.2]octanes. Syntheses and Hydrolyses of 6- exo-substituted 2- exo- and 2- endo-Bicyclo[2.2.2]octyl p-Toluenesulfnates. Part 9.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1859, doi. 10.1002/hlca.19840670723

By:

Grob, Cyril A.;
Sawlewicz, Pawel

Publication type:

Article

Approaches to the synthesis of cytochalasans. Part 8. Further transformations and optical resolution of the tetrahydroisoindolinone subunit.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1998, doi. 10.1002/hlca.19840670738

By:

Schmidlin, Tibur;
Wallach, Daniel;
Tamm, Christoph

Publication type:

Article

γ-Nitro-γ-butyrolacton.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1725, doi. 10.1002/hlca.19840670709

By:

Kostova, Kaline;
Hesse, Manfred

Publication type:

Article

Milde alkalische Hydrolyse von Aconitin.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 2017, doi. 10.1002/hlca.19840670740

By:

Katz, Alfred;
Rudin, Hanspeter

Publication type:

Article

Photochemical reactions. 139th Communication. Photochemistry of acylsilanes: 1. Siloxcarbene formation versus γ-H-abstraction.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1734, doi. 10.1002/hlca.19840670711

By:

Scheller, Markus E.;
Frei, Bruno

Publication type:

Article

Addition von Dimethylketen an 6-heterosubstituierte Fulvene. Synthese von (±)-Filifolon.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1854, doi. 10.1002/hlca.19840670722

By:

Stadler, Heinz;
Rey, Max;
Dreiding, André S.

Publication type:

Article

The Reaction of 4-Hydroperoxy-2,4,6-trimethylcyclohexa-2,5-dienone with Acetaldehyde. Formatino of the Bis(peroxyacetal).

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1952, doi. 10.1002/hlca.19840670733

By:

Jefford, Charles W.;
Bernardinelli, Gérald;
McGoran, Ernest C.

Publication type:

Article

'Lone Pair' and 'CI Bond' Ionization Energies of exo- and endo-2-Norbornyl Iodides.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1691, doi. 10.1002/hlca.19840670704

By:

Honegger, Evi;
Heilbronner, Edgar;
Dratva, Alfred;
Grob, Cyril A.

Publication type:

Article

(all- E)-1,3,5,7-Octatetraene: Electron-Energy-Loss and Electron-Transmission Spectra.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1776, doi. 10.1002/hlca.19840670715

By:

Allan, Michael;
Neuhaus, Louis;
Haselbach, Edwin

Publication type:

Article

Cob(I)alamin-Catalyzed Skeletal Migrations Observed during the Reduction of 4β-( tert-Butyl)-1α-(1-methylvinyl)cyclohexanecarbaldehyde.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1883, doi. 10.1002/hlca.19840670726

By:

Wan, Terence S.;
Fischli, Albert

Publication type:

Article

Approaches to the synthesis of cytochalasans. Part 7. Synthesis of some building blocks for the construction of the macrocyclic moiety.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1989, doi. 10.1002/hlca.19840670737

By:

Wallach, Daniel;
Csendes, Ivan G.;
Burckhardt, Peter E.;
Schmidlin, Tibur;
Tamm, Christoph

Publication type:

Article

Synthesen makrocyclischer Lactone durch Ringerweiterung Herstellung von (±)-Phoracantholid I, (±)-Dihydrorecifeiolid und (±)-15-Hexadecanolid.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1713, doi. 10.1002/hlca.19840670708

By:

Kostava, Kalina;
Hesse, Manfred

Publication type:

Article

Bonding Capabilities of the Biochemical Buffer TRIS toward Copper(II) Ion. Structure and Magnetic Properties of Binuclear and Tetranuclear Systems.

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1818, doi. 10.1002/hlca.19840670719

By:

Masi, Dante;
Mealli, Carloo;
Sabat, Michal;
Sabatini, Antonio;
Vacca, Alberto;
Zanobini, Fabrizio

Publication type:

Article