Volume 85; Issue 11

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Helvetica Chimica Acta
Volume 85; Issue 11

Helvetica Chimica Acta

Volume 85; Issue 11

1

Facile Access to Versatile Polyaromatic Building Blocks: Selectively Protected Benzocyclobutenedione Derivatives via Regioselective [2+2] Cycloaddition of α-Alkoxybenzyne and Ketene Silyl Acetal

Toshiyuki Hamura, Takamitsu Hosoya, Hiroki Yamaguchi, Yokusu Kuriyama, Mitsujiro Tanabe, Makoto Miyamoto, Yoshizumi Yasui, Takashi Matsumoto, Keisuke Suzuki

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 177 KB

english, 2002

2

Enantioselective Nucleophilic Aromatic Substitution with Small-Molecule Chiral Selectors

Seth E. Snyder, Alex B. Shvets, William H. Pirkle

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 200 KB

english, 2002

3

A Convenient, Room-Temperature–Organic Base Protocol for Preparing Chiral 3-(Enoyl)-1,3-oxazolidin-2-ones

Vadim A. Soloshonok, Hisanori Ueki, Changchun Jiang, Chaozhong Cai, Victor J. Hruby

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 89 KB

english, 2002

4

Synthesis and Crystal Structure of Peptide-2,2′-Biphenyl Hybrids

Enrique Mann, Ana Montero, Miguel A. Maestro, Bernardo Herradón

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 704 KB

english, 2002

5

Probing Catalytic Solid-Liquid Interfaces by Attenuated Total Reflection Infrared Spectroscopy: Adsorption of Carboxylic Acids on Alumina and Titania

Davide Ferri, Thomas Bürgi, Alfons Baiker

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 1.76 MB

english, 2002

6

Asymmetric Synthesis of α-Substituted N-Methylsulfonamides

Dieter Enders, Christian R. Thomas, Nicola Vignola, Gerhard Raabe

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 262 KB

english, 2002

7

Lewis Acid Catalyzed Ring-Opening Reactions of Sugar-Derived Semicyclic N,O-Acetals

Masaharu Sugiura, Hiroyuki Hagio, Shu Kobayashi

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 285 KB

english, 2002

8

Helix-Forming Oligoureas: Temperature-Dependent NMR, Structure Determination, and Circular Dichroism of a Nonamer with Functionalized Side Chains

Christine Hemmerlin, Michel Marraud, Didier Rognan, Roland Graff, Vincent Semetey, Jean-Paul Briand, Gilles Guichard

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 643 KB

english, 2002

9

Tandem Inter [4+2]/Intra [3+2] Cycloadditions of Nitroalkenes. Application to the Synthesis of Aminocarbasugars

Scott E. Denmark, Martin Juhl

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 384 KB

english, 2002

10

New Rhodium Complexes Coordinated by Bidentate Imine Ligands with Benzothiazolyl Functionalities

Gerrit R. Julius, Stephanie Cronje, Arno Neveling, Catharine Esterhuysen, Helgard G. Raubenheimer

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 202 KB

english, 2002

11

The Role of Ate Complexes in the Lithium-Sulfur, Lithium-Selenium and Lithium-Tellurium Exchange Reactions

Hans J. Reich, Birgir Ö. Gudmundsson, D. Patrick Green, Martin J. Bevan, Ieva L. Reich

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 602 KB

english, 2002

12

Enantioselective Nitrogen Transfer to Sulfides from Nitridomanganese(V) Complexes

Craig S. Tomooka, Erick M. Carreira

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 218 KB

english, 2002

13

Crystallization-Induced Asymmetric Transformations. Enantiomerically pure (−)-(R)- and (+)-(S)-2,3-Dibromopropan-1-ol and Epibromohydrins. A Study of Dynamic Resolution via the Formation of Diastereoisomeric Esters

Gabriella Brunetto, Susanna Gori, Rita Fiaschi, Elio Napolitano

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 107 KB

english, 2002

14

Vicinal Dianion of Triethyl Ethanetricarboxylate: Syntheses of (±)-Lichesterinic Acid, (±)-Phaseolinic Acid, (±)-Nephromopsinic Acid, (±)-Rocellaric Acid, and (±)-Dihydroprotolichesterinic Acid

Manat Pohmakotr, Wacharee Harnying, Patoomratana Tuchinda, Vichai Reutrakul

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 414 KB

english, 2002

15

On the Mechanism of Internal ortho-Lithiation in a Mixed Complex Between BuLi and a Chiral Lithium Amide

Per I. Arvidsson, Göran Hilmersson, Öjvind Davidsson

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 277 KB

english, 2002

16

Synthesis of Cryptolepine and Cryptoteckieine from a Common Intermediate

Tse-Lok Ho, Der-Guey Jou

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 103 KB

english, 2002

17

A Domino Aldol Addition/Hemiketal Formation/Hemiketal Formation/Epimerization Route to a Heteroadamantane. A Crystal-Structure, NMR, and Computational Study

Horst Glaser, Ralph Puchta, Nico J. R. van Eikema Hommes, Dirk Leusser, Alexander Murso, Dietmar Stalke, Walter Bauer, Rolf W. Saalfrank

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 570 KB

english, 2002

18

Synthesis and Redox Properties of Bis{4-[bis(4-methoxyphenyl)amino]-2,6-bis(2,4,6-triisopropylphenyl)phenyl}diphosphene

Shigeru Sasaki, Hiroyuki Aoki, Katsuhide Sutoh, Shinobu Hakiri, Kyoko Tsuji, Masaaki Yoshifuji

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 107 KB

english, 2002

19

Preparation of New Ferrocenylmonophosphine Ligands Containing Two Planar Chiral Ferrocenyl Moieties and Their Use for Palladium-Catalyzed Asymmetric Hydrosilylation of 1,3-Dienes

Jin Wook Han, Norihito Tokunaga, Tamio Hayashi

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 159 KB

english, 2002

20

Nucleo-β-Amino Acids: Synthesis and Oligomerization to β-Homoalanyl-PNA

Arndt M. Brückner, Harald W. Schmitt, Ulf Diederichsen

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 243 KB

english, 2002

21

Enhanced Hydrolytic Stability of Short-Chain Poly[(R)-3-hydroxybutyrate] Conjugated to Native E. coli Cytoplasmic Proteins

Rosetta N. Reusch, E. M. Bryant

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 76 KB

english, 2002

22

β-Peptides with Different Secondary-Structure Preferences: How Different Are Their Conformational Spaces?

Riccardo Baron, Dirk Bakowies, Wilfred F. van Gunsteren, Xavier Daura

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 468 KB

english, 2002

23

On the Thermal Stability of β-Peptides: A Two-Dimensional Vibrational Spectroscopy Study

Peter Hamm, Sander Woutersen, Magnus Rueping

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 652 KB

english, 2002

24

Synthesis of a Novel Class of Carbohydrate-Containing Calix[4]resorcinarene Adopting an Asymmetrical Diamond Structure

Peyman Sakhaii, Laurent Verdier, Takahila Ikegami, Christian Griesinger

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 484 KB

english, 2002

25

Highly Branched Alkanoic Acids from the Preen-Gland Wax of the Domestic Goose as Building Blocks for Chiral Triphenylenes

Andreas Schultz, Sabine Laschat, Michael Morr, Siegmar Diele, Michael Dreyer, Gerhard Bringmann

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 588 KB

english, 2002

26

Efficient Method for the Elongation of the N-Acetylglucosamine Unit by Combined Use of Chitinase and β-Galactosidase

Shin-ichiro Shoda, Masaya Fujita, Chakapan Lohavisavapanichi, Yoshinori Misawa, Koushin Ushizaki, Yukiko Tawata, Mao Kuriyama, Michinari Kohri, Hideyuki Kuwata, Takeshi Watanabe

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 449 KB

english, 2002

27

A Facile Synthesis of a Wide Variety of Cationic Ruthenium Hydrido-Arene Complexes of binap (=1,1′-Binaphthalene-2,2′-diylbis(diphenylphosphane)) and MeObiphep (=6,6′-Dimethoxybiphenyl-2,2′-diylbis(diphenylphosphane))

Tilmann J. Geldbach, Paul S. Pregosin

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 214 KB

english, 2002

28

Electrostatic Energies in the 1,4-Dichlorobenzene Polymorph Crystals: the Role of Charge Density Overlap Effects in Crystal Packing Analysis

Jack D. Dunitz, Angelo Gavezzotti

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 365 KB

english, 2002

29

Synthesis of (±)-Nephromopsinic, (−)-Phaseolinic, and (−)-Dihydropertusaric Acids

Andrea Brecht-Forster, Juliette Fitremann, Philippe Renaud

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 190 KB

english, 2002

30

Enhancement of Homochirality in Oligopeptides by Quartz

Thomas Hitz, Pier Luigi Luisi

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 210 KB

english, 2002

31

Trans-Hydrogen-Bond Scalar Couplings as a Source of Structural Constraints in NMR of Proteins: DFT Analysis

Tim Heinz, Osvaldo Moreira, Konstantin Pervushin

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 375 KB

english, 2002

32

Synthesis and MMP-Inhibitory Activity of Gelastatin Analogues

Ju-Hee Cho, Soo Y. Ko, Eugene Oh, Jae C. Park, Ji U. Yoo

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 113 KB

english, 2002

33

Building an Organic Zeolite from a Macrocyclic TADDOL Derivative or How to Teach an Old Dog New Tricks

Dietmar A. Plattner, Albert K. Beck, Markus Neuburger

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 693 KB

english, 2002

34

In Search of Organic Zeolites – Does Modern Information Retrieval Inevitably Become a ‘Sieving-the-Desert' Exercise?

Engelbert Zass, Dietmar A. Plattner, Albert K. Beck, Markus Neuburger

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 801 KB

english, 2002

35

Chemo-Enzymatic Synthesis and Determination of the Absolute Configuration of Both Enantiomers of Methyl trans-5-Oxo-2-pentylpyrrolidine-3-carboxylate Precursors of the Aza Analogues of (+)- and (−)-Methylenolactocin

Fulvia Felluga, Maurizio Fermeglia, Marco Ferrone, Giuliana Pitacco, Sabrina Pricl, Ennio Valentin

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 144 KB

english, 2002

36

NMR Solution Structure of the Duplex Formed by Self-Pairing of α-L-Arabinopyranosyl-(4′2′)-(CGAATTCG)

Marc-Olivier Ebert, Anatol Luther, Hoan K. Huynh, Ramanarayanan Krishnamurthy, Albert Eschenmoser, Bernhard Jaun

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 1014 KB

english, 2002

37

The Control of the Stereochemistry in the Palladium-Catalyzed Alternating Styrene/Carbon Monoxide Copolymerization: Effect of the Chirality of the Ligand and of the Ligand-to-Palladium Ratio, Preliminary Communication

Achim Gsponer, Barbara Milani, Giambattista Consiglio

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 87 KB

english, 2002

38

Synthesis and Some Reactions of 2-Acyl-2-alkyl-1,3-dithiolane 1,1-Dioxides

M. Teresa Barros, António S. Henriques, Alcino J. Leitão, Christopher D. Maycock

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 99 KB

english, 2002

39

The Total Synthesis and Biological Assessment of trans-Epothilone A

Karl-Heinz Altmann, Guido Bold, Giorgio Caravatti, Donatienne Denni, Andreas Flörsheimer, Alfred Schmidt, Grety Rihs, Markus Wartmann

Journal:

Helvetica Chimica Acta

Year:

2002

Language:

english

File:

PDF, 556 KB

english, 2002