Volume 74; Issue 1

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Helvetica Chimica Acta
Volume 74; Issue 1

Helvetica Chimica Acta

Volume 74; Issue 1

1

Masthead

Journal:

Helvetica Chimica Acta

Year:

1991

File:

PDF, 29 KB

1991

2

Instructions to Authors (1991)

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 950 KB

english, 1991

3

Synthesis and Structure of the Copper(II) Complex of a Chiral Bis(dihydrooxazole) Ligand

Jonathan Hall, Jean-Marie Lehn, André DeCian, Jean Fischer

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 351 KB

english, 1991

4

Nucleotides. Part XXXIVSynthesis of Modified Oligomeric 2′–5′A Analogues: Potential Antiviral Agents

Piet Herdewijn, Klaus Ruf, Wolfgang Pfleiderer

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 1.35 MB

english, 1991

5

New Synthetic Route to Polyhedral Organylsilsesquioxanes

Daniel Herren, Heribert Bürgy, Gion Calzaferri

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 226 KB

english, 1991

6

A New General Synthesis of 2,2-Dialkyl-2,3-dihydro-4H-pyran-4-ones and Their Application for the in situ Preparation of Electron-Rich Dienes in Carbonyl-Alkyne Exchange Reactions with Acetylenes

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 1.26 MB

english, 1991

7

Rogiolenyne A, B, and C: The First Branched Marine C15 Acetogenins. Isolation from the Red Seaweed Laurencia microcladia or the Sponge Spongia zimocca of II Rogiolo

Graziano Guella, Francesco Pietra

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 414 KB

english, 1991

8

Generation and Trapping of Cyclopropenes from 2-Alkoxy-1,1-dichlorocyclopropanes

Paul Müller, Nicole Pautex

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 597 KB

english, 1991

9

Structural and Luminescence Study of the 3:2 Complex between Europium Nitrate and the B Isomer of Dicyclohexyl-18-crown-6

Emmanuel Moret, Francesco Nicolò, Dominique Plancherel, Pascal Froidevaux, Jean-Claude G. Bünzli, Gervais Chapuis

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 764 KB

english, 1991

10

1H-Phenalen-1-one: Photophysical Properties and Singlet-Oxygen Production

Esther Oliveros, Patricia Suardi-Murasecco, Taraneh Aminian-Saghafi, André M. Braun, Hans-Jürgen Hansen

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 745 KB

english, 1991

11

Michael Reactions of α-Unsubstituted Trisubstituted 1H-Pyrroles

Rainer Lüönd, Reinhard Neier

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 730 KB

english, 1991

12

Asymmetric Diels-Alder Cycloadditions with C2-Symmetrical Chiral Carbamoylnitroso Dienophiles

Albert Defoin, Agnès Brouillard-Poichet, Jacques Streith

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 398 KB

english, 1991

13

Synthesis of Aristotelia-Type Alkaloids. Part VIBiomimetic Synthesis of (+)-Aristofruticosine

René Beerli, Hans-Jürg Borschberg

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 469 KB

english, 1991

14

Neurotoxic Sesquiterpenoids from the Yellow Star Thistle Centaurea solstitialis L. (Asteraceae)

Ying Wang, Matthias Hamburger, Celine H. K. Cheng, Brenda Costall, Robert J. Naylor, Peter Jenner, Kurt Hostettmann

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 479 KB

english, 1991

15

2,3- and 4,5-Secodopa, the Biosynthetic Intermediates Generated from L-Dopa by an Enzyme System Extracted from the Fly Agaric, Amanita muscaria L., and Their Spontaneous Conversion to Muscaflavin and Betalamic Acid, Respectively, and Betalains

Fernand Terradas, Hugo Wyler

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 1.04 MB

english, 1991

16

Le (−)-(2S)-2-Hydroxyhexanedioate de diéthyle, nouveau bloc chiral pour la synthèse énantiospécifique

Florian Blaser, Pierre-François Deschenaux, Thomas Kallimopoulos, André Jacot-Guillarmod

Journal:

Helvetica Chimica Acta

Year:

1991

File:

PDF, 338 KB

1991

17

Reductive Radical Cyclisations of Bromo Acetals and (Bromomethyl)silyl Ethers of Terpenoid Alcohols

Edward R. Lee, Ivo Lakomy, Peter Bigler, Rolf Scheffold

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 1.22 MB

english, 1991

18

1-Methoxycarbonyl-substituiertes 2,3-Dihydropyridin-4(1H)-on (= Methyl-1,2,3,4-tetrahydro-4-oxopyridin-1-carboxylat) als Chromophor für die photochemische [2 + 2]-Cycloaddition

Philippe Guerry, Philippe Blanco, Heinz Brodbeck, Olivier Pasteris, Reinhard Neier

Journal:

Helvetica Chimica Acta

Year:

1991

File:

PDF, 1004 KB

1991

19

Structure and Synthesis of Novel C12 Terpenoids from Quince Fruit (Cydonia oblonga MILL.)

Sina Escher, Yvan Niclass

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 680 KB

english, 1991

20

(Cycloheptatrienyl)hydridotungsten Complexes

Elke Schwed, Hans-Ulrich Hund, H. William Bosch, Heinz Berke

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 404 KB

english, 1991

21

C-Alkylation of Peptides through Polylithiated and LiCl-Solvated Derivatives Containing Sarcosine Li-Enolate Units

Dieter Seebach, Hans Bossler, Hansjörg Gründler, Shin-Ichiro Shoda, Roland Wenger

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 1.88 MB

english, 1991

22

Photochemical Reactions of Tetrahydroquinoxalin-2(1H)-ones and Related Compound

Takehiko Nishio, Masaji Kondo, Yoshimori Omote

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 455 KB

english, 1991

23

C2-Symmetric 4,4′,5,5′-Tetrahydrobi(oxazoles) and 4,4′,5,5′-Tetrahydro-2,2′-methylenebis[oxazoles] as Chiral Ligands for Enantioselective Catalysis Preliminary Communication

Dieter Müller, Gisela Umbricht, Beat Weber, Andreas Pfaltz

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 517 KB

english, 1991

24

Mitteilungen

Journal:

Helvetica Chimica Acta

Year:

1991

Language:

english

File:

PDF, 129 KB

english, 1991