Works matching IS 0018019X AND DT 1993 AND VI 76 AND IP 4

Results: 36

Oxidative Coupling Of 2-Alkyl-6,6-dimethylpentafulvenyl Anions.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1497, doi. 10.1002/hlca.19930760411

By:

You, Shaochun;
Neuenschwander, Markus

Publication type:

Article

Synthesis and Solvent Effects on the Conformation of Hymenistatin 1.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1649, doi. 10.1002/hlca.19930760422

By:

Konat, Robert K.;
Mierke, Dale F.;
Kessler, Horst;
Kutscher, Bernhard;
Bernd, Michael;
Voegeli, Rainer

Publication type:

Article

Glycosylidene Carbenes Part 12. A new synthesis and some reactions of spirooxiranes.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1767, doi. 10.1002/hlca.19930760433

By:

Vasella, Andrea;
Dhar, Preeti;
Witzig, Christian

Publication type:

Article

7-Deazaguanosine: Synthesis of an oligorbonucleotide building block and disaggregation of the U-G-G-G-G-U G4 structure by the modified base.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1435, doi. 10.1002/hlca.19930760404

By:

Seela, Frank;
Mersmann, Karin

Publication type:

Article

Modification of Cyclosporin A (CS): Generation of an enolate at the sarcosine residue and reactions with electrophiles.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1564, doi. 10.1002/hlca.19930760415

By:

Seebach, Dieter;
Beck, Albert K.;
Bossler, Hans G.;
Gerber, Christian;
Ko, Soo Y;
Murtiashaw, C. William;
Naef, Reto;
Shoda, Shin-Ichiro;
Thaler, Adrian;
Krieger, Manfred;
Wenger, Roland

Publication type:

Article

Radical Rearrangements of 2- O-(Diphenoxyphosphoryl)glycosyl Bromides.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1687, doi. 10.1002/hlca.19930760426

By:

Koch, Andreass;
Giese, Bernd

Publication type:

Article

The Conformation of Medium-Sized Organosilicon Heterocycles: First evidence for the existence of a boat-boat conformation in a 12 H-dibenzo[ d,g][1,3,2]dioxasilocin.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1476, doi. 10.1002/hlca.19930760408

By:

Fuhrer, Hermann;
Meier, Hansrudolf;
Rist, Günther;
Pastor, Stephen D.;
Shum, Sai P.;
Clarke, Frank H.

Publication type:

Article

Über Diels-Alder-Reaktionen des C60-Fullerens Vorläufige Mitteilung.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1626, doi. 10.1002/hlca.19930760419

By:

Krätler, Bernhard;
Puchberger, Michael

Publication type:

Article

On the Novel Free Porphyrins Corallistin B, C, D, and E: Isolation from the demosponge Corallistes sp. of the Coral Sea and Reactivity of Their Nickel 55 (II) Complexes toward Formylating Reagents.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1489, doi. 10.1002/hlca.19930760410

By:

D'Ambrosio, Michele;
Guerriero, Antonio;
Pietra, Francesco;
Debitus, Cécile;
Ribes, Olivier

Publication type:

Article

Die massenspektrometrische Wasserabspaltung aus makrocyclischen Amino-ketonen.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1636, doi. 10.1002/hlca.19930760421

By:

Benz, Herbert;
Hesse, Manfred

Publication type:

Article

Application of Electrospray Mass Spectrometry for Characterizing Supramolecular Coordination Complexes.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1759, doi. 10.1002/hlca.19930760432

By:

Hopfgartner, Gérara;
Henion, Jack D.;
Piguet, Claude;
Williams, Alan F.

Publication type:

Article

( o -Hydroxyphenyl)methylphosphonic Acids: Spectrophotometric determination of their p Ka values and of the deprotonation sequence.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1425, doi. 10.1002/hlca.19930760403

By:

Chafaa, Salah;
Meullemeestre, Jean;
Schwing, Marie-José;
Vierling, François;
Böhmer, Volker;
Vogt, Walter

Publication type:

Article

Template-Assembled Synthetic Proteins (TASP). Cyclic Templates with Incorporated Turn-Inducing Mimics.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1539, doi. 10.1002/hlca.19930760414

By:

Earnest, Ivan;
Kalvoda, Jaroslav;
Francotte, Eric;
Rihs, Grety;
Fritz, Hans;
Blommers, Marcel J. J.;
Raschdorf, Fritz;
Sigel, Christoph;
Mutter, Manfred

Publication type:

Article

Derivatisierung von PQQ und PQQ-Triester für den Nachweis von PQQ.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1678, doi. 10.1002/hlca.19930760425

By:

Martin, Pierre;
Winkler, Tammo

Publication type:

Article

Mitteilungen.

Published in:: Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1808, doi. 10.1002/hlca.19930760436
Publication type:: Article

Säurekatalysierte Umsetzungen von 2- Vinylanilin-Derivaten mit 1-Benzyl- und 1-Methylpiperidin-4-on: Eine Elegante Synthese Neuer Polycyclischer Indol-Derivate.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1469, doi. 10.1002/hlca.19930760407

By:

Walter, Harald;
Sauter, Hanspeter;
Schneider, Josef

Publication type:

Article

Degradation of Cephaloridine on Alkaline Hydrolysis.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1619, doi. 10.1002/hlca.19930760418

By:

Vilanova, Bartolomé;
Muñoz, Francisco;
Donoso, Josefa;
Garcia-Blanco, Francisco

Publication type:

Article

Identification of The Tocopherol-Cyclase in the Blue-Green Algae Anabaena variabilis K ÜTZING ( Cyanobacteria).

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1729, doi. 10.1002/hlca.19930760429

By:

Stocker, Achim;
Woggon, Wolf-Dietrich;
Rüttimann, August

Publication type:

Article

Definitive Proof for the Operation of Isotopically Sensitive Branching ('Metabolic Switching') in FeI-Mediated CH Bond Activation in the Gas Phase Short Communication.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1632, doi. 10.1002/hlca.19930760420

By:

Seemeyer, Katrin;
Prüsse, Tilmann;
Schwarz, Helmut

Publication type:

Article

Synthesis and Antiviral Activity of Novel Adamantylpeptides.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1752, doi. 10.1002/hlca.19930760431

By:

Vranešić, Branka;
Tomašić, Jelka;
Smerdel, Stainslav;
Kantoci, Darko;
Benedetti, Fabio

Publication type:

Article

Interactions between Functional Groups Part IV. The responses of four diazonium groups to adjacent electron-rich atoms in peri-substituted naphthalene and quinoline derivatives.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1411, doi. 10.1002/hlca.19930760402

By:

Wallis, John D.;
Easton, Robert J. C.;
Dunitz, Jack D.

Publication type:

Article

Structural Chemistry of Chiral Complexes. NMR and X-ray studies on Rh1 compounds of ( S)-1-[bis( p-methylphenyl)phosphino]-2-[( p-methoxybenzyl)amino]-3-methylbutane.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1520, doi. 10.1002/hlca.19930760413

By:

Berger, Heinrich;
Nesper, Reihnard;
Pregosin, Paul S.;
Rüegger, Heinz;
Wörle, Michael

Publication type:

Article

Das Diazo-chinon von PQQ als mögliches Reagenz für die Kartierung von Chinoproteinen mittels Photoaffinitätsmarkierung.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1674, doi. 10.1002/hlca.19930760424

By:

Martin, Pierre;
Winkler, Tammo

Publication type:

Article

Synthese von selektiv N- funktionalisierten Polyamin-Derivaten.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1511, doi. 10.1002/hlca.19930760412

By:

Fiedler, Wolfgang J.;
Hesse, Manfred

Publication type:

Article

A Convenient Procedure for he Synthesis o 2,3,4,6-Tetra- O-benzyl- D-gluconolactam and D-Nojirilactam.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1802, doi. 10.1002/hlca.19930760435

By:

Hoos, Roland;
Naughton, Andrew B.;
Vasella, Andrea

Publication type:

Article

Internal Nucleophilic Termination in Acid-Mediated Polyene Cyclisations: Synthetic access to methyle homologs of (±)- Ambrox® and its diastereoisomers.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1608, doi. 10.1002/hlca.19930760417

By:

Snowden, Roger L.;
Eichenberger, Jean-Claude;
Giersch, Wolfgang;
Thommen, Walter;
Schulte-Elte, Karl H.

Publication type:

Article

Umsetzung von 1,3-Thiazol-5(4 H)-thionen mit Diazomethan.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1715, doi. 10.1002/hlca.19930760428

By:

Kägi, Martin;
Linden, Anthony;
Heimgartner, Heinz;
Mlostoń, Grzegorz

Publication type:

Article

Synthesis and Structure of a p-Terphenoquinone and Paramagnetic Species Derived Therefrom.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1739, doi. 10.1002/hlca.19930760430

By:

Boldt, Peter;
Bruhnke, Detlev;
Gerson, Fabina;
Scholz, Markus;
Jones, Peter G.;
Bär, Friedrich

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1993, v. 76, n. 4, p. fmi, doi. 10.1002/hlca.19930760401
Publication type:: Article

Hydrogenation of the ansa-Chain of Rifamycins. X-ray crystal structure of (16 S)-16,17,18,19-tetrahydrorifamycin S.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1459, doi. 10.1002/hlca.19930760406

By:

Bartolucci, Cecilia;
Cellai, Luciano;
Filippo, Patrizia Di;
Lamba, Doriano;
Segre, Anna Laura;
Bianco, Armando Doriano;
Guiso, Marcella;
Pasquali, Vinicio;
Brufani, Mario

Publication type:

Article

Zur Herstellung von PQQ in kg-Mengen.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1667, doi. 10.1002/hlca.19930760423

By:

Martin, Pierre;
Steiner, Eginhard;
Auer, Kurt;
Winkler, Tammo

Publication type:

Article

Glyconothio- O-lactones Part II. Cycloaddition to Dienes, Diazomethane, and Carbenoids.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1779, doi. 10.1002/hlca.19930760434

By:

Hürzeler, Marianne;
Bernet, Bruno;
Mäder, Thomas;
Vasella, Andrea

Publication type:

Article

Pyrazolo[3,4- d]pyrimidine 2′ -Deoxy- and 2′,3′ -Dideoxyribonucleosides: Studies on the glycosylation of 4-methoxypyrazolo[3,4- d]pyrimidine.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1450, doi. 10.1002/hlca.19930760405

By:

Seela, Frank;
Winter, Holger;
Möller, Marianne

Publication type:

Article

Enantioselective Synthesis of 3- Azabicyclo[4.3.0]nonane Alkaloids.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1591, doi. 10.1002/hlca.19930760416

By:

Cid, Maria Magdalena;
Pombo-Villar, Esteban

Publication type:

Article

Dehydroalanine-Containing Peptides by AcOH-Elimination from O-Acetylserine Residuces with DBU/LiClO4 in Tetrahydrofuran.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1702, doi. 10.1002/hlca.19930760427

By:

Sommerfeld, Thimo L.;
Seebach, Dieter

Publication type:

Article

New Monoterpene-Substituted Dihydrochalcones from Piper aduncum.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 4, p. 1481, doi. 10.1002/hlca.19930760409

By:

Orjala, Jimmy;
Wright, Anthony D.;
Erdelmeier, Clemens A. J.;
Sticher, Otto;
Rali, Topul

Publication type:

Article

Works matching IS 0018019X AND DT 1993 AND VI 76 AND IP 4

Oxidative Coupling Of 2-Alkyl-6,6-dimethylpentafulvenyl Anions.

Synthesis and Solvent Effects on the Conformation of Hymenistatin 1.

Glycosylidene Carbenes Part 12. A new synthesis and some reactions of spirooxiranes.

7-Deazaguanosine: Synthesis of an oligorbonucleotide building block and disaggregation of the U-G-G-G-G-U G<sub>4</sub> structure by the modified base.

Modification of Cyclosporin A (CS): Generation of an enolate at the sarcosine residue and reactions with electrophiles.

Radical Rearrangements of 2- O-(Diphenoxyphosphoryl)glycosyl Bromides.

The Conformation of Medium-Sized Organosilicon Heterocycles: First evidence for the existence of a boat-boat conformation in a 12 H-dibenzo[ d,g][1,3,2]dioxasilocin.

Über Diels-Alder-Reaktionen des C<sub>60</sub>-Fullerens Vorläufige Mitteilung.

On the Novel Free Porphyrins Corallistin B, C, D, and E: Isolation from the demosponge Corallistes sp. of the Coral Sea and Reactivity of Their Nickel 55 (II) Complexes toward Formylating Reagents.

Die massenspektrometrische Wasserabspaltung aus makrocyclischen Amino-ketonen.

Application of Electrospray Mass Spectrometry for Characterizing Supramolecular Coordination Complexes.

( o -Hydroxyphenyl)methylphosphonic Acids: Spectrophotometric determination of their p K<sub>a</sub> values and of the deprotonation sequence.

Template-Assembled Synthetic Proteins (TASP). Cyclic Templates with Incorporated Turn-Inducing Mimics.

Derivatisierung von PQQ und PQQ-Triester für den Nachweis von PQQ.

Mitteilungen.

Säurekatalysierte Umsetzungen von 2- Vinylanilin-Derivaten mit 1-Benzyl- und 1-Methylpiperidin-4-on: Eine Elegante Synthese Neuer Polycyclischer Indol-Derivate.

Degradation of Cephaloridine on Alkaline Hydrolysis.

Identification of The Tocopherol-Cyclase in the Blue-Green Algae Anabaena variabilis K ÜTZING ( Cyanobacteria).

Definitive Proof for the Operation of Isotopically Sensitive Branching ('Metabolic Switching') in Fe<sup>I</sup>-Mediated CH Bond Activation in the Gas Phase Short Communication.

Synthesis and Antiviral Activity of Novel Adamantylpeptides.

Interactions between Functional Groups Part IV. The responses of four diazonium groups to adjacent electron-rich atoms in peri-substituted naphthalene and quinoline derivatives.

Structural Chemistry of Chiral Complexes. NMR and X-ray studies on Rh<sup>1</sup> compounds of ( S)-1-[bis( p-methylphenyl)phosphino]-2-[( p-methoxybenzyl)amino]-3-methylbutane.

Das Diazo-chinon von PQQ als mögliches Reagenz für die Kartierung von Chinoproteinen mittels Photoaffinitätsmarkierung.

Synthese von selektiv N- funktionalisierten Polyamin-Derivaten.

A Convenient Procedure for he Synthesis o 2,3,4,6-Tetra- O-benzyl- D-gluconolactam and D-Nojirilactam.

Internal Nucleophilic Termination in Acid-Mediated Polyene Cyclisations: Synthetic access to methyle homologs of (±)- Ambrox® and its diastereoisomers.

Umsetzung von 1,3-Thiazol-5(4 H)-thionen mit Diazomethan.

Synthesis and Structure of a p-Terphenoquinone and Paramagnetic Species Derived Therefrom.

Masthead.

Hydrogenation of the ansa-Chain of Rifamycins. X-ray crystal structure of (16 S)-16,17,18,19-tetrahydrorifamycin S.

Zur Herstellung von PQQ in kg-Mengen.

Glyconothio- O-lactones Part II. Cycloaddition to Dienes, Diazomethane, and Carbenoids.

Pyrazolo[3,4- d]pyrimidine 2′ -Deoxy- and 2′,3′ -Dideoxyribonucleosides: Studies on the glycosylation of 4-methoxypyrazolo[3,4- d]pyrimidine.

Enantioselective Synthesis of 3- Azabicyclo[4.3.0]nonane Alkaloids.

Dehydroalanine-Containing Peptides by AcOH-Elimination from O-Acetylserine Residuces with DBU/LiClO<sub>4</sub> in Tetrahydrofuran.

New Monoterpene-Substituted Dihydrochalcones from Piper aduncum.