Works in Helvetica Chimica Acta, 1992, Vol 75, Issue 1

Results: 33

Warum Pentose- und nicht Hexose-Nucleinsäuren?? Teil I. Einleitung und Problemstellung, Konformationsanalyse für Oligonucleotid-Ketten aus 2′,3′-Dideoxyglucopyranosyl-Bausteinen ('Homo-DNS') sowie Betrachtungen zur Konformation von A- und B-DNS

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 218, doi. 10.1002/hlca.19920750120

By:

Eschenmoser, Albert;
Dobler, Max

Publication type:

Article

Radical Cations and Radical Anions of Three Bridgehead Azopolycycloalkanes: A fluid-solution ESR study.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 351, doi. 10.1002/hlca.19920750131

By:

Gescheidt, Georg;
Lamprecht, Axel;
Rüchardt, Christoph;
Schmittel, Michael

Publication type:

Article

75 YEARS OF HELVETICA CHIMICA ACTA.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 1, doi. 10.1002/hlca.19920750102

By:

Heilbronner, Edgar;
Kisakürek, M. Volkan

Publication type:

Article

Einelektronen-Redox-Reaktionen von Octaphenyl[4]radialen: Erzeugung und ESR/ENDOR-Charakterisierung seines Radikal-Anions und Radikal-Kations.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 160, doi. 10.1002/hlca.19920750113

By:

Bock, Hans;
Rohn, Günther

Publication type:

Article

Diastereoselective Spirocyclization of Imines of 2-Substituted 1 H-Indole-3-ethylamines ( = Trypatamines): Variation of the electrophile and the substituent at C(2) and its influence on the steric outcome. 6th Communication on indoles, indolenines, and indolines

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 282, doi. 10.1002/hlca.19920750124

By:

Freund, Ralf;
Martinović, Suzanna;
Bernauer, Karl

Publication type:

Article

Endohedral fullerene-noble gas clusters formed with high-energy bimolecular reactions of C.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 79, doi. 10.1002/hlca.19920750106

By:

Weiske, Thomas;
Hrušák, Jan;
Bohme, Diethard K.;
Schwarz, Helmut

Publication type:

Article

The Synthesis of a Novel Epoxycyclohexane from the Fungus Eutypa lata (Pers: F.) T UL.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 276, doi. 10.1002/hlca.19920750123

By:

Defrancq, Eric;
Gordon, John;
Brodard, André;
Tabacchi, Raffaele

Publication type:

Article

On the unusual propensity by the red seaweed Laurencia microcladia of II Rogiolo to form C15 oxepanes: Isolation of rogioloxepane A, B, C, and their likely biogenetic acyclic precursor, prerogioloxepane.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 310, doi. 10.1002/hlca.19920750128

By:

Guella, Graziano;
Mancini, Ines;
Chiasera, Giuseppe;
Pietra, Francesco

Publication type:

Article

Radical Anions of Cyclic Azoalkanes: An ESR, ENDOR, and TRIPLE-Resonance Study.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 335, doi. 10.1002/hlca.19920750130

By:

Ess, Caspar H.;
Gerson, Fabian;
Adam, Waldemar

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1992, v. 75, n. 1, p. fmi, doi. 10.1002/hlca.19920750101
Publication type:: Article

X-Ray Crystal Structure of 25- O-Deacetyl-27, 28-didehydro-27-demthoxy-11-deoxo-11, 29-epoxy-28,29-dihydro-21,23- O-isopropylidenerifamycin S.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 153, doi. 10.1002/hlca.19920750112

By:

Bartolucci, Cecillia;
Cellai, Luciano;
Cerrini, Silvio;
Di Filippo, Patrizia;
Lamba, Doriano

Publication type:

Article

Investigations Concerning an Unexpected Reaction between the Dimsyl Anion ( = (Methylsulfinyl)methanide) and a γ,δ-Epoxy-ketone.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 190, doi. 10.1002/hlca.19920750117

By:

Beerli, René;
Borschberg, Hans-Jürg

Publication type:

Article

Photochemical Reactions. 153th communication. Photochemistry of acylsilanes: Photolyses and thermolyses of α,β-epoxy silyl ketones.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 69, doi. 10.1002/hlca.19920750105

By:

Scheller, Markus E.;
Frei, Bruno

Publication type:

Article

Syntheses and X-Ray Structures for Model Compounds of a Pyrimidinediyl-Based Rigid-Rod Aromatic Polyamide.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 184, doi. 10.1002/hlca.19920750116

By:

Oertli, Alfred G.;
Meyer, Werner R.;
Suter, Ulrich W.;
Joho, Felix B.;
Gramlich, Volker;
Petter, Walter

Publication type:

Article

Rogiolenyne D, the likely immediate precursor of rogiolenyne A and B, branched C15 acetogenins isolated from the red seaweed Laurencia microcladia of II Rogiolo. Conformation and absolute configuration in the whole series.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 303, doi. 10.1002/hlca.19920750127

By:

Guella, Graziano;
Mancini, Ines;
Chiasera, Giuseppe;
Pietra, Francesco

Publication type:

Article

Crystal Structure of Bis(η6-mesitylene)iron(II) Hexafluorophosphate.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 294, doi. 10.1002/hlca.19920750126

By:

Cameron, T. Stanley;
Linden, Anthony;
Sturge, K. Craig;
Zaworotko, Michael J.

Publication type:

Article

[(1,3-Dioxolan-2-yliden)methyl]phosphonate und -phosphinate als (einfache) Synthone in der Heterocyclensynthese.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 124, doi. 10.1002/hlca.19920750109

By:

Neidlein, Richard;
Eichinger, Thomas

Publication type:

Article

Cyclohexanecarboxylic-Acid Derivatives from Psiadia trinervia.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 269, doi. 10.1002/hlca.19920750122

By:

Wang, Ying;
Hamburger, Matthias;
Gueho, Joseph;
Hostettmann, Kurt

Publication type:

Article

Mitteilungen.

Published in:: Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 358, doi. 10.1002/hlca.19920750133
Publication type:: Article

Synthese von Makrocyclen durch Ringerweiterung von 14gliedrigen cyclischen Imiden.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 62, doi. 10.1002/hlca.19920750104

By:

Koch, Thomas;
Ognyanov, Vassil I.;
Hesse, Manfred

Publication type:

Article

Investigations of the Molecular Surface of a Few Sandalwood-Odor Molecules and Related Structures: Conformational calculations on sandalwood odorants. VI.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 174, doi. 10.1002/hlca.19920750115

By:

Buchbauer, Gerhard;
Leonhardsberger, Karin;
Winiwarter, Susanne;
Wolschann, Peter

Publication type:

Article

Chiral Tetraamines Based on ( S)-2-(Aminomethyl)pyrrolidine: Template synthesis and properties of copper(II) complexes.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 145, doi. 10.1002/hlca.19920750111

By:

Bernhardt, Paul V.;
Comba, Peter;
Hambley, Trevor W.;
Martin, Lisandra L.;
Várnagy, Katalin;
Zipper, Luc

Publication type:

Article

Asymmetric Diels- Alder Cycloadditions with Chiral Carbamoyl Dienophiles.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 109, doi. 10.1002/hlca.19920750108

By:

Defoin, Albert;
Brouillard-Poichet, Agnès;
Streith, Jacques

Publication type:

Article

Multinuclear NMR Studies of Ligand-Exchange Reactions on Analogous Technetium(V) and Rhenium(V) Complexes. Relevance to nuclear medicine.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 210, doi. 10.1002/hlca.19920750119

By:

Helm, Lothar;
Deutsch, Karen;
Deutsch, Edward A.;
Merbach, André E.

Publication type:

Article

Synthesis of Enantiomeric Pure E-Nor-15-azayohimbines.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 137, doi. 10.1002/hlca.19920750110

By:

Valls, Nativitat;
Bonjoch, Josep;
Del Alamo, Carlos;
Bosch, Joan

Publication type:

Article

Epimeric Isopavine N-Oxides from Roemeria refracta.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 260, doi. 10.1002/hlca.19920750121

By:

Gözler, Belkis;
Ali Önür, Mustafa;
Bilir, Serap;
Hesse, Manfred

Publication type:

Article

Erratum.

Published in:: Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 357, doi. 10.1002/hlca.19920750132
Publication type:: Article

Helvetica Chimica Acta and Coordination Chemistry.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 21, doi. 10.1002/hlca.19920750103

By:

Venanzi, Luigi M.

Publication type:

Article

Catalytic asymmetric synthesis of Secondary ( E)-allyl alcohols from acetylenes and aldehydes via (1-alkenyl)zinc intermediates. Preliminary Communication.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 170, doi. 10.1002/hlca.19920750114

By:

Oppolzer, Wolfgang;
Radinov, Rumen N.

Publication type:

Article

Electrochemical Oxidation of Ergolines.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 288, doi. 10.1002/hlca.19920750125

By:

Seifert, Karlheinz;
Phuong, Nguyen Minh;
Vincent, Beverly R.

Publication type:

Article

A Reduction Catalyst Powered by Its Own 10-Electron Battery: Synthesis and properties of a pentaviologen-linked corrinatocobalt complex.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 90, doi. 10.1002/hlca.19920750107

By:

Steiger, Beat;
Walder, Lorenz

Publication type:

Article

Opening of the Macrocyclic Ring in 5,10:8,9-Disecosteroids ( = Steroklastanes).

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 203, doi. 10.1002/hlca.19920750118

By:

Lorenc, Ljubinka;
Bondarenko-Gheorghiu, Lidija;
Pavlović, Vladimir;
Fuhrer, Hermann;
Kalvoda, Jaroslav;
Mihailović, Mihailo Lj.

Publication type:

Article

Synthesis and Enzyme-Inhibition Studies of Phenylsemicarbazones derived from D-glucono-1,5-lactone and 2-acetamido-2-deoxy- D-glucono-1,5-lactone.

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 1, p. 323, doi. 10.1002/hlca.19920750129

By:

Wolk, Diane R.;
Vasella, Andrea;
Schweikart, Fritz;
Peter, Martin G.

Publication type:

Article

Works in Helvetica Chimica Acta, 1992, Vol 75, Issue 1

Warum Pentose- und nicht Hexose-Nucleinsäuren?? Teil I. Einleitung und Problemstellung, Konformationsanalyse für Oligonucleotid-Ketten aus 2′,3′-Dideoxyglucopyranosyl-Bausteinen ('Homo-DNS') sowie Betrachtungen zur Konformation von A- und B-DNS

Radical Cations and Radical Anions of Three Bridgehead Azopolycycloalkanes: A fluid-solution ESR study.

75 YEARS OF HELVETICA CHIMICA ACTA.

Einelektronen-Redox-Reaktionen von Octaphenyl[4]radialen: Erzeugung und ESR/ENDOR-Charakterisierung seines Radikal-Anions und Radikal-Kations.

Diastereoselective Spirocyclization of Imines of 2-Substituted 1 H-Indole-3-ethylamines ( = Trypatamines): Variation of the electrophile and the substituent at C(2) and its influence on the steric outcome. 6th Communication on indoles, indolenines, and indolines

Endohedral fullerene-noble gas clusters formed with high-energy bimolecular reactions of C.

The Synthesis of a Novel Epoxycyclohexane from the Fungus Eutypa lata (Pers: F.) T UL.

On the unusual propensity by the red seaweed Laurencia microcladia of II Rogiolo to form C<sub>15</sub> oxepanes: Isolation of rogioloxepane A, B, C, and their likely biogenetic acyclic precursor, prerogioloxepane.

Radical Anions of Cyclic Azoalkanes: An ESR, ENDOR, and TRIPLE-Resonance Study.

Masthead.

X-Ray Crystal Structure of 25- O-Deacetyl-27, 28-didehydro-27-demthoxy-11-deoxo-11, 29-epoxy-28,29-dihydro-21,23- O-isopropylidenerifamycin S.

Investigations Concerning an Unexpected Reaction between the Dimsyl Anion ( = (Methylsulfinyl)methanide) and a γ,δ-Epoxy-ketone.

Photochemical Reactions. 153th communication. Photochemistry of acylsilanes: Photolyses and thermolyses of α,β-epoxy silyl ketones.

Syntheses and X-Ray Structures for Model Compounds of a Pyrimidinediyl-Based Rigid-Rod Aromatic Polyamide.

Rogiolenyne D, the likely immediate precursor of rogiolenyne A and B, branched C<sub>15</sub> acetogenins isolated from the red seaweed Laurencia microcladia of II Rogiolo. Conformation and absolute configuration in the whole series.

Crystal Structure of Bis(η<sup>6</sup>-mesitylene)iron(II) Hexafluorophosphate.

[(1,3-Dioxolan-2-yliden)methyl]phosphonate und -phosphinate als (einfache) Synthone in der Heterocyclensynthese.

Cyclohexanecarboxylic-Acid Derivatives from Psiadia trinervia.

Mitteilungen.

Synthese von Makrocyclen durch Ringerweiterung von 14gliedrigen cyclischen Imiden.

Investigations of the Molecular Surface of a Few Sandalwood-Odor Molecules and Related Structures: Conformational calculations on sandalwood odorants. VI.

Chiral Tetraamines Based on ( S)-2-(Aminomethyl)pyrrolidine: Template synthesis and properties of copper(II) complexes.

Asymmetric Diels- Alder Cycloadditions with Chiral Carbamoyl Dienophiles.

Multinuclear NMR Studies of Ligand-Exchange Reactions on Analogous Technetium(V) and Rhenium(V) Complexes. Relevance to nuclear medicine.

Synthesis of Enantiomeric Pure E-Nor-15-azayohimbines.

Epimeric Isopavine N-Oxides from Roemeria refracta.

Erratum.

Helvetica Chimica Acta and Coordination Chemistry.

Catalytic asymmetric synthesis of Secondary ( E)-allyl alcohols from acetylenes and aldehydes via (1-alkenyl)zinc intermediates. Preliminary Communication.

Electrochemical Oxidation of Ergolines.

A Reduction Catalyst Powered by Its Own 10-Electron Battery: Synthesis and properties of a pentaviologen-linked corrinatocobalt complex.

Opening of the Macrocyclic Ring in 5,10:8,9-Disecosteroids ( = Steroklastanes).

Synthesis and Enzyme-Inhibition Studies of Phenylsemicarbazones derived from D-glucono-1,5-lactone and 2-acetamido-2-deoxy- D-glucono-1,5-lactone.