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Volume 85; Issue 3

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Helvetica Chimica Acta
Volume 85; Issue 3

Helvetica Chimica Acta

Volume 85; Issue 3

1

Oligonucleosides with a Nucleobase-Including Backbone, Part 7

Punit Kumar Bhardwaj, Andrea Vasella

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 131 KB

english, 2002

2

Hetero-Diels-Alder and Cheletropic Additions of Sulfur Dioxide to 1,2-Dimethylidenecycloalkanes. Determination of Thermochemical and Kinetics Parameters for Reactions in Solution and Comparison with Estimates From Quantum Calculations

Frédéric Monnat, Pierre Vogel, José Ángel Sordo

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 392 KB

english, 2002

3

Substituent Effect on the Competition between Hetero-Diels-Alder and Cheletropic Additions of Sulfur Dioxide to 1-Substituted Buta-1,3-dienes

Elena Roversi, Frédéric Monnat, Pierre Vogel, Kurt Schenk, Pietro Roversi

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 468 KB

english, 2002

4

Competition between Hetero-Diels-Alder and Cheletropic Additions of Sulfur Dioxide to 2-Substituted Buta-1,3-dienes. Synthesis of 2-(1-Naphthyl)- and 2-(2-Naphthyl)buta-1,3-diene

Elena Roversi, Pierre Vogel

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 198 KB

english, 2002

5

Conjugate Addition of Lithiated (S)-4-Isopropyl-3- [(methylthio)methyl]-5,5-diphenyloxazolidin-2-one to Cinnamoyl Derivatives: Preparation of Enantiomerically Pure 1,4-Diols

Christoph Gaul, Dieter Seebach

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 186 KB

english, 2002

6

α-Helical Polypeptide Films Grown From Sulfide or Thiol Linkers on Gold Surfaces

Kevin W. Kittredge, Mark A. Minton, Marye Anne Fox, James K. Whitesell

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 235 KB

english, 2002

7

Semiempirical Modeling with Application of Artificial Neural Networks for the Photocatalytic Reaction of Ethylenediaminetetraacetic Acid (EDTA) over Titanium Oxide (TiO2)

Carina A. Emilio, Marta I. Litter, Jorge F. Magallanes

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 223 KB

english, 2002

8

An HF and DFT ab initio Study on the Mechanism of ortho-Directed Lithiation of Hydric and Nonhydric Aromatic Compounds Incorporating Aggregation and Discrete Solvation: The Role of N,N,N′,N′-Tetramethylethane-1,2-diamine (TMEDA) in Lithiation Reactions

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 365 KB

english, 2002

9

Titanium(IV) Bromide and Boron(III) Tribromide Promoted Baylis-Hillman Reactions of Arylaldehydes with But-3-yn-2-one

Min Shi, Chun-Jiang Wang

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 142 KB

english, 2002

10

New Pterocarpanoids of Crotalaria pallida and Crotalaria assamica

Jing-Ru Weng, Ming-Hong Yen, Chun-Nan Lin

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 105 KB

english, 2002

11

Soluble Polystyrenes Functionalized by Triorgano[(1-oxoalkyl)oxy]stannanes (=Triorganotin Carboxylates): Synthesis, Structure, and Anion-Recognition Characteristics

Hassan Dalil, Monique Biesemans, Rudolph Willem, Luigi Angiolini, Elisabetta Salatelli, Daniele Caretti, Nikolas A. Chaniotakis, Katerina Perdikaki

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 191 KB

english, 2002

12

Protein Protection by Antioxidants: Development of a Convenient Assay and Structure-Activity Relationships of Natural Polyphenols

Aline Salvi, Corinne Brühlmann, Eugenia Migliavacca, Pierre-Alain Carrupt, Kurt Hostettmann, Bernard Testa

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 358 KB

english, 2002

13

Tremellin, a Novel Symmetrical Compound, from the Basidiomycete Tremella aurantialba

Ding Zhi-Hui, Li Jing-Ping, Liu Ji-Kai, Lu Yang, Wang Cheng, Zheng Qi-Tai

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 59 KB

english, 2002

14

Synthesis and Use of 2H-Azirin-3-amines as Dipeptide Synthons

Roland A. Breitenmoser, Heinz Heimgartner

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 333 KB

english, 2002

15

Enantioselective Heterogeneous Epoxidation and Hetero-Diels-Alder Reaction with Mn- and Cr-salen Complexes Immobilized on Silica Gel by Radical Grafting

Alexander Heckel, Dieter Seebach

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 211 KB

english, 2002

16

Pseudocoenzyme B12 and Adenosyl-Factor A: Electrochemical Synthesis and Spectroscopic Analysis of Two Natural B12 Coenzymes with Predominantly ‘Base-off' Constitution

Wolfgang Fieber, Bernd Hoffmann, Wolfgang Schmidt, Erhard Stupperich, Robert Konrat, Bernhard Kräutler

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 318 KB

english, 2002

17

Synthesis and Conformational Analysis of All Eight Diastereoisomers of 5-Methylyohimbane

Christian Lohse, Richard Detterbeck, Pierre Acklin, Hans-Jürg Borschberg

Journal:

Helvetica Chimica Acta

Année:

2002

Langue:

english

Fichier:

PDF, 210 KB

english, 2002