Works matching IS 0018019X AND DT 1998 AND VI 81 AND IP 12

Results: 22

Regioselective Deprotection and Acylation of Penta- N-Protected Thermopentamine.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2300, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2300::AID-HLCA2300>3.0.CO;2-7

By:

Pak, Jae Kyoung;
Hesse, Manfred

Publication type:

Article

Synthesis of Amino-Acid-, Carbohydrate-, Coumarin-, and Biotin-Labelled Oligo[( R)-3-Hydroxybutanoic Acids] (OHB).

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2414, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2414::AID-HLCA2414>3.0.CO;2-C

By:

Fritz, Monica G.;
Seebach, Dieter

Publication type:

Article

Lipase-Catalyzed Acylation and Deacylation Reactions of Pyridoxine, a Member of Vitamin-B6 Group.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2407, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2407::AID-HLCA2407>3.0.CO;2-X

By:

Baldessari, Alicia;
Mangone, Constanza P.;
Gros, Eduardo G.

Publication type:

Article

Allgemeiner Zugang zu Polyaminen mit Ethan-1,2-diamin-Einheiten: Synthese von nicht natürlich vorkommenden homologen und isomeren N1,4-Di(4-cumaroyl)sperminen.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2270, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2270::AID-HLCA2270>3.0.CO;2-#

By:

Lochner, Martin;
Geneste, Hervé;
Hesse, Manfred

Publication type:

Article

Formation of Unusual Products from the Acid-Catalyzed Reaction of Azulenes with Dimethyl Acetylenedicarboxylate.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2201, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2201::AID-HLCA2201>3.0.CO;2-7

By:

Brügger, Paul;
Uebelhart, Peter;
Kunz, Roland W.;
Sigrist, Rolf;
Hansen, Hans-Jürgen

Publication type:

Article

Synthesis of New 3′-Deoxyribonucleosides Employing the Acid-Catalyzed Fusion Method.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2326, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2326::AID-HLCA2326>3.0.CO;2-4

By:

Volpini, Rosaria;
Camaioni, Emidio;
Costanzi, Stefano;
Vittori, Sauro;
Cristalli, Gloria

Publication type:

Article

Structure/Odor Relationships of (&sminus 0;)- and (&splus 0;)- β-Vetivone, and Their Demethyl Derivatives.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2292, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2292::AID-HLCA2292>3.0.CO;2-K

By:

Spreitzer, Helmut;
Piringer, Iris;
Holzer, Wolfgang;
Widhalm, Michael

Publication type:

Article

Iron-Mediated Amination of Hydrocarbons in the Gas Phase.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2348, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2348::AID-HLCA2348>3.0.CO;2-P

By:

Brönstrup, Mark;
Kretzschmar, Ilona;
Schröder, Detlef;
Schwarz, Helmut

Publication type:

Article

Desulfurization of 4-Nitro- N,2-diphenyl-3-(phenylamino)isothiazol- 5(2 H)-imine: Formation of a 3-Imino-2-nitroprop-2-enamidine.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2388, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2388::AID-HLCA2388>3.0.CO;2-H

By:

Argilagos, Dally Moya;
Kunz, Roland W.;
Linden, Anthony;
Heimgartner, Heinz

Publication type:

Article

Oligosaccharide Analogues of Polysaccharides.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2157, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2157::AID-HLCA2157>3.0.CO;2-4

By:

Ernst, Alexander;
Schweizer, W. Bernd;
Vasella, Andrea

Publication type:

Article

Stereoselective 1,3-Dipolar Cycloadditions to ( S)-1-Benzoyl-3-(cyanomethylidene)-5-(methoxycarbonyl)pyrrolidin-2-one.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2332, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2332::AID-HLCA2332>3.0.CO;2-Q

By:

Škof, Marko;
Svete, Jurij;
Stanovnik, Branko;
Golič, Ljubo;
Golič-Grdadolnik, Simona;
Selič, Lovro

Publication type:

Article

Influence of the Solvent Polarity on the Stereoselectivity of the Uncatalyzed [4+2] Cycloaddition of Cyclopentadiene to N, N′-Fumaroyldi[(2 R)-borane-10,2-sultam].

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2314, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2314::AID-HLCA2314>3.0.CO;2-I

By:

Chapuis, Christian;
Kucharska, Anna;
Rzepecki, Piotr;
Jurczak, Janusz

Publication type:

Article

N 7-DNA: Base-Pairing Properties of N 7-(2′-Deoxy- β- D- erythro-pentofuranosyl)-Substituted Adenine, Hypoxanthine, and Guanine in Duplexes with Parallel Chain Orientation.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2244, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2244::AID-HLCA2244>3.0.CO;2-I

By:

Seela, Frank;
Leonard, Peter

Publication type:

Article

( S)- β3-Homolysine- and ( S)- β3-Homoserine-Containing β-Peptides: CD Spectra in Aqueous Solution.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2141, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2141::AID-HLCA2141>3.0.CO;2-5

By:

Abele, Stefan;
Guichard, Gilles;
Seebach, Dieter

Publication type:

Article

Synthesis and Structure of Linear and Cyclic Oligomers of 3-Hydroxybutanoic Acid with Specific Sequences of ( R)- and ( S)-Configurations.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2430, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2430::AID-HLCA2430>3.0.CO;2-W

By:

Bachmann, Beat M.;
Seebach, Dieter

Publication type:

Article

On the Diastereoselectivity of the Aqueous-Acid-Catalyzed Intramolecular Aldol Condensation of 3-Oxocyclohexaneacetaldehydes.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2375, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2375::AID-HLCA2375>3.0.CO;2-0

By:

De Santis, Barbara;
Iamiceli, Anna Laura;
Bettolo, Rinaldo Marini;
Migneco, Luisa Maria;
Scarpelli, Rita;
Cerichelli, Giorgio;
Fabrizi, Giancarlo;
Lamba, Doriano

Publication type:

Article

Preparation and Structure of β-Peptides Consisting of Geminally Disubstituted β2,2- and β3,3-Amino Acids: A Turn Motif for β-Peptides.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2218, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2218::AID-HLCA2218>3.0.CO;2-0

By:

Seebach, Dieter;
Abele, Stefan;
Sifferlen, Thierry;
Hänggi, Martin;
Gruner, Sibylle;
Seiler, Paul

Publication type:

Article

Facile Synthesis of Furan-3,4-diacetates.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2370, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2370::AID-HLCA2370>3.0.CO;2-U

By:

Wenkert, Ernest;
Khatuya, Haripada

Publication type:

Article

Rapid Synthesis of α, β-Didehydroaspartic-Acid Derivatives Carrying a β-Substituent.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2341, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2341::AID-HLCA2341>3.0.CO;2-U

By:

Schottelius, Marc J.;
Chen, Peter

Publication type:

Article

Die Aminopentadienal-Umlagerung.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2282, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2282::AID-HLCA2282>3.0.CO;2-M

By:

Fischer, Fabian;
Neuenschwander, Markus

Publication type:

Article

Preparation of 17 β-(Hydroxymethyl)-3-methoxyestra-1,3,5(10)- trien-18-oic Acid 18,20-Lactone, a New C(18)-Oxygenated Steroid.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2264, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2264::AID-HLCA2264>3.0.CO;2-E

By:

Kuhl, Alexander;
Kreiser, Wolfgang

Publication type:

Article

Negative Cooperativity in the Molecular Recognition of Excitatory Amino-Acid Derivatives by Synthetic Allosteric 1,1′-Binaphthalene Receptors.

Published in:

Helvetica Chimica Acta, 1998, v. 81, n. 12, p. 2190, doi. 10.1002/(SICI)1522-2675(19981216)81:12<2190::AID-HLCA2190>3.0.CO;2-1

By:

Lustenberger, Philipp;
Welti, Roger;
Diederich, François

Publication type:

Article

Works matching IS 0018019X AND DT 1998 AND VI 81 AND IP 12

Regioselective Deprotection and Acylation of Penta- N-Protected Thermopentamine.

Synthesis of Amino-Acid-, Carbohydrate-, Coumarin-, and Biotin-Labelled Oligo[( R)-3-Hydroxybutanoic Acids] (OHB).

Lipase-Catalyzed Acylation and Deacylation Reactions of Pyridoxine, a Member of Vitamin-B<sub>6</sub> Group.

Allgemeiner Zugang zu Polyaminen mit Ethan-1,2-diamin-Einheiten: Synthese von nicht natürlich vorkommenden homologen und isomeren N<sup>1</sup>,4-Di(4-cumaroyl)sperminen.

Formation of Unusual Products from the Acid-Catalyzed Reaction of Azulenes with Dimethyl Acetylenedicarboxylate.

Synthesis of New 3′-Deoxyribonucleosides Employing the Acid-Catalyzed Fusion Method.

Structure/Odor Relationships of (&sminus 0;)- and (&splus 0;)- β-Vetivone, and Their Demethyl Derivatives.

Iron-Mediated Amination of Hydrocarbons in the Gas Phase.

Desulfurization of 4-Nitro- N,2-diphenyl-3-(phenylamino)isothiazol- 5(2 H)-imine: Formation of a 3-Imino-2-nitroprop-2-enamidine.

Oligosaccharide Analogues of Polysaccharides.

Stereoselective 1,3-Dipolar Cycloadditions to ( S)-1-Benzoyl-3-(cyanomethylidene)-5-(methoxycarbonyl)pyrrolidin-2-one.

Influence of the Solvent Polarity on the Stereoselectivity of the Uncatalyzed [4+2] Cycloaddition of Cyclopentadiene to N, N′-Fumaroyldi[(2 R)-borane-10,2-sultam].

N <sup>7</sup>-DNA: Base-Pairing Properties of N <sup>7</sup>-(2′-Deoxy- β- D- erythro-pentofuranosyl)-Substituted Adenine, Hypoxanthine, and Guanine in Duplexes with Parallel Chain Orientation.

( S)- β<sup>3</sup>-Homolysine- and ( S)- β<sup>3</sup>-Homoserine-Containing β-Peptides: CD Spectra in Aqueous Solution.

Synthesis and Structure of Linear and Cyclic Oligomers of 3-Hydroxybutanoic Acid with Specific Sequences of ( R)- and ( S)-Configurations.

On the Diastereoselectivity of the Aqueous-Acid-Catalyzed Intramolecular Aldol Condensation of 3-Oxocyclohexaneacetaldehydes.

Preparation and Structure of β-Peptides Consisting of Geminally Disubstituted β<sup>2,2</sup>- and β<sup>3,3</sup>-Amino Acids: A Turn Motif for β-Peptides.

Facile Synthesis of Furan-3,4-diacetates.

Rapid Synthesis of α, β-Didehydroaspartic-Acid Derivatives Carrying a β-Substituent.

Die Aminopentadienal-Umlagerung.

Preparation of 17 β-(Hydroxymethyl)-3-methoxyestra-1,3,5(10)- trien-18-oic Acid 18,20-Lactone, a New C(18)-Oxygenated Steroid.

Negative Cooperativity in the Molecular Recognition of Excitatory Amino-Acid Derivatives by Synthetic Allosteric 1,1′-Binaphthalene Receptors.