Works matching IS 0018019X AND DT 2002 AND VI 85 AND IP 3

Results: 17

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 733, doi. 10.1002/1522-2675(200203)85:3<733::AID-HLCA733>3.0.CO;2-U

By:

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

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 841, doi. 10.1002/1522-2675(200203)85:3<841::AID-HLCA841>3.0.CO;2-U

By:

Shi, Min;
Wang, Chun-Jiang

Publication type:

Article

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.

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 712, doi. 10.1002/1522-2675(200203)85:3<712::AID-HLCA712>3.0.CO;2-5

By:

Monnat, Frédéric;
Vogel, Pierre;
Sordo, José Ángel

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 913, doi. 10.1002/1522-2675(200203)85:3<913::AID-HLCA913>3.0.CO;2-U

By:

Heckel, Alexander;
Seebach, Dieter

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 814, doi. 10.1002/1522-2675(200203)85:3<814::AID-HLCA814>3.0.CO;2-U

By:

Saá, José M.

Publication type:

Article

Oligonucleosides with a Nucleobase-Including Backbone, Part 7.

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 699, doi. 10.1002/1522-2675(200203)85:3<699::AID-HLCA699>3.0.CO;2-N

By:

Bhardwaj, Punit Kumar;
Vasella, Andrea

Publication type:

Article

New Pterocarpanoids of Crotalaria pallida and Crotalaria assamica.

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 847, doi. 10.1002/1522-2675(200203)85:3<847::AID-HLCA847>3.0.CO;2-6

By:

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

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 852, doi. 10.1002/1522-2675(200203)85:3<852::AID-HLCA852>3.0.CO;2-M

By:

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

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 885, doi. 10.1002/1522-2675(200203)85:3<885::AID-HLCA885>3.0.CO;2-Z

By:

Breitenmoser, Roland A.;
Heimgartner, Heinz

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 867, doi. 10.1002/1522-2675(200203)85:3<867::AID-HLCA867>3.0.CO;2-Z

By:

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

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 788, doi. 10.1002/1522-2675(200203)85:3<788::AID-HLCA788>3.0.CO;2-R

By:

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

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 799, doi. 10.1002/1522-2675(200203)85:3<799::AID-HLCA799>3.0.CO;2-J

By:

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

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 945, doi. 10.1002/1522-2675(200203)85:3<945::AID-HLCA945>3.0.CO;2-A

By:

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

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 882, doi. 10.1002/1522-2675(200203)85:3<882::AID-HLCA882>3.0.CO;2-A

By:

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

Publication type:

Article

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

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 927, doi. 10.1002/1522-2675(200203)85:3<927::AID-HLCA927>3.0.CO;2-A

By:

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

Publication type:

Article

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.

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 761, doi. 10.1002/1522-2675(200203)85:3<761::AID-HLCA761>3.0.CO;2-Q

By:

Roversi, Elena;
Vogel, Pierre

Publication type:

Article

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.

Published in:

Helvetica Chimica Acta, 2002, v. 85, n. 3, p. 772, doi. 10.1002/1522-2675(200203)85:3<772::AID-HLCA772>3.0.CO;2-I

By:

Gaul, Christoph;
Seebach, Dieter

Publication type:

Article

Works matching IS 0018019X AND DT 2002 AND VI 85 AND IP 3

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

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

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.

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

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

Oligonucleosides with a Nucleobase-Including Backbone, Part 7.

New Pterocarpanoids of Crotalaria pallida and Crotalaria assamica.

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

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

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

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

Semiempirical Modeling with Application of Artificial Neural Networks for the Photocatalytic Reaction of Ethylenediaminetetraacetic Acid (EDTA) over Titanium Oxide (TiO<sub>2</sub>).

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

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

Pseudocoenzyme B<sub>12</sub> and Adenosyl-Factor A: Electrochemical Synthesis and Spectroscopic Analysis of Two Natural B<sub>12</sub> Coenzymes with Predominantly 'Base-off' Constitution.

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.

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.