Works matching IS 0018019X AND DT 1991 AND VI 74 AND IP 5

Results: 25

Transesterifications with 1,8-Diazabicyclo[5.4.0]undec-7-ene/Lithium Bromide (DBU/LiBr) - Also Applicable to Cleavage of Peptides from Resins in Merrifleld Syntheses.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1102, doi. 10.1002/hlca.19910740520

By:

Scebach, Dieter;
Thaler, Adrian;
Blaser, Denis;
Ko, Soo Y.

Publication type:

Article

Chiral Cooperativity: The Effect of Distant Chiral Centers in Ferrocenylamine Ligands upon Enantioselectivity in the Gold(I)-Catalyzed Aldol Reaction.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 905, doi. 10.1002/hlca.19910740502

By:

Pastor, Stephen D.;
Togni, Antonio

Publication type:

Article

Conformational Analysis of the cis- and trans-Isomers of FK506 by NMR and Molecular Dynamics.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1027, doi. 10.1002/hlca.19910740513

By:

Mierke, Dale F.;
Schmieder, Peter;
Karuso, Peter;
Kessler, Horst

Publication type:

Article

Dimeric Metal Complexes as Mediators for Radical CC Bond-Forming Reactions.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1135, doi. 10.1002/hlca.19910740523

By:

Giese, Bernd;
Thoma, Gebhard

Publication type:

Article

Ionization Behavior and Ionization-Dependent Conformation of Raclopride, a Dopamine D2 Receptor Antagonist.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 956, doi. 10.1002/hlca.19910740506

By:

Carrupt, Pierre-Alain;
Tsai, Ruey-Shiuan;
Tayar, Nabil El;
Testa, Bernard;
de Paulis, Tomas;
Högberg, Thomas

Publication type:

Article

3′-Substituted and 2′,3′-Unsaturated 7-Deazaguanine 2′,3′-Dideoxynucleosides: Syntheses and Inhibition of HIV-1 Reverse Transcriptase.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1081, doi. 10.1002/hlca.19910740517

By:

Seela, Frank;
Muth, Heinz-Peter

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1991, v. 74, n. 5, p. fmi, doi. 10.1002/hlca.19910740501
Publication type:: Article

New Polycyclic Compounds from Photochemical Rearrangements of Some Substituted 2-Azatricyclo[5.2.2.01,5]undeca-4,8,10-trien-3-ones.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1011, doi. 10.1002/hlca.19910740512

By:

Mihova, Tonya R.;
Trifonov, Latchezar S.;
Dimitrov, Valentin S.;
Orahovats, Alexander S.;
Linden, Anthony;
Heimgartner, Heinz

Publication type:

Article

CC Bond Formation via Carbon-Centered Radicals Generated from Dicarbonyl(η5-cyclopentadienyl) organoiron Complexes.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1143, doi. 10.1002/hlca.19910740524

By:

Giese, Bernd;
Thoma, Gebhard

Publication type:

Article

[5-Leucin]enkephalin-Related Glycoconjugates: Structurally Novel Agents Effective against HIV-1.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 951, doi. 10.1002/hlca.19910740505

By:

Horvat, Štefica;
Varga, Lidija;
Horvat, Jaroslav;
Pfützner, Andreas;
Suhartono, Haryadi;
Rübsamen-Waigmann, Helga

Publication type:

Article

Nitroacetyl Group as a Peptide Synthon: Synthesis of Dipeptides with an α,α-Bisallylglycine Residue at the N-Terminus.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1071, doi. 10.1002/hlca.19910740516

By:

Manjunatha, Sulur G.;
Chittari, Pabba;
Rajappa, Srinivasachari

Publication type:

Article

The Lewis basicity of the [Pt3(μ-CO)3(PR3)3] clusters and the X-ray crystal structure of [{ZnI2}{Pt3(μ-CO)3(PPh( i-Pr)2)3}].

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 989, doi. 10.1002/hlca.19910740509

By:

Stockhammer, Andreas;
Dahmen, Klaus-Hermann;
Gerfin, Tobias;
Venanzi, Luigi M.;
Gramlich, Volker;
Fetter, Walter

Publication type:

Article

Ringerweiterung von 1,2-Thiazol-3(2 H)-on-1,1-dioxiden und 3-Amino-2 H-azirinen zu 4 H-1,2,5-Thiadiazocin-6-on-1,1-dioxiden.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1002, doi. 10.1002/hlca.19910740511

By:

Rahm, Annette;
Linden, Anthony;
Vincent, Beverly R.;
Heimgartner, Heinz;
Mühlstädt, Manfred;
Schulze, Bärbel

Publication type:

Article

Regioselectivity, Stereoselectivity, and Isotopically Sensitive Branching in the Fe(I)-Mediated Dehydrogenation of Octane-1,8-diol in the Gas Phase.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1127, doi. 10.1002/hlca.19910740522

By:

Prüsse, Tilmann;
Fiedler, Andreas;
Schwarz, Helmut

Publication type:

Article

Aromatic nucleophilic substitution. Part 3. Preparation of novel 9-oxo-9 H-thioxanthene- and 9-oxo-9 H-xanthenedicarboximides and -dicarboxylates.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1119, doi. 10.1002/hlca.19910740521

By:

Fischer, Walter

Publication type:

Article

Zur Oxidation von 1,2-Thiazolen: Ein einfacher Zugang zu 1,2-Thiazol-3(2 H)-on-1,1-dioxiden.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1059, doi. 10.1002/hlca.19910740515

By:

Schulze, Bärbel;
Kirsten, Gisela;
Kirrbach, Sabine;
Rahm, Annette;
Heimgartner, Heinz

Publication type:

Article

Synthesis and X-Ray Crystal Structure of an Optically Pure Tripodal C3-Symmetric Tritertiary Phosphine Bearing Chirality on Phosphorus.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 983, doi. 10.1002/hlca.19910740508

By:

Ward, Thomas R.;
Venanzi, Luigi M.;
Albinati, Alberto;
Lianza, Francesca;
Gerfin, Tobias;
Gramlich, Volker;
Tombo, Gerardo M. Ramos

Publication type:

Article

Zur Synthese von Derivaten des Pyrido[1,2- a]azepins.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1095, doi. 10.1002/hlca.19910740519

By:

Maicr, Wolfram;
Eberbach, Wolfgang;
Fritz, Hans

Publication type:

Article

Stereo and Face Selectivity in Cycloadditions of 1,2,3-Trichloro-3-fluorocyclopropenes to Acyclic Dienes and Furans.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 993, doi. 10.1002/hlca.19910740510

By:

Müller, Paul;
Bernardinelli, Gérald;
Pfyffer, Jean;
Schaller, Jean-Pierre

Publication type:

Article

Synthesis of the Bretonins, Polyolefinic Esterified Glyceryl Ethers of an Unidentified Sponge from the North-Brittany Sea: Absolute Configuration and Novel Structure Assignment.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 941, doi. 10.1002/hlca.19910740504

By:

Mancini, Ines;
Guella, Graziano;
Pietra, Francesco

Publication type:

Article

Imidazole-Analogues of 6-Epicastanospermine and of 3,7a-Diepialexine.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 934, doi. 10.1002/hlca.19910740503

By:

Frankowski, Andrzej;
Seliga, Czeslawa;
Bur, Daniel;
Streith, Jacques

Publication type:

Article

1,7-Dideaza-2′,3′-dideoxyadenosine: Syntheses of Pyrrolo[2,3- b]pyndine 2′,3′-Dideoxyribofuranosides and Participation of Purine N(1) during HIV-1 Reverse Transcriptase Inhibition.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1048, doi. 10.1002/hlca.19910740514

By:

Seela, Frank;
Gumbiowski, Rainer

Publication type:

Article

Mitteilungen.

Published in:: Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1156, doi. 10.1002/hlca.19910740525
Publication type:: Article

Synthesis, Isolation, and Full Spectroscopic Characterization of Eleven ( Z)-Isomers of (3 R,3′ R)-Zeaxanthin.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 969, doi. 10.1002/hlca.19910740507

By:

Englert, Gerhard;
Noack, Klaus;
Broger, Emil A.;
Glinz, Ernst;
Vecchi, Max;
Zell, Reinhard

Publication type:

Article

Photo-induced molecular transformations. Part 123. One-step synthesis of 1 H-benz[ f]indole-4,9-diones by a new regioselective photoaddition of 2-amino-1,4-naphthoquinone with various alkenes and its application to one-step synthesis of kinamycin skeleton

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1091, doi. 10.1002/hlca.19910740518

By:

Kobayashi, Kazuhiro;
Takeuchi, Hiroyasu;
Seko, Shinzo;
Suginome, Hiroshi

Publication type:

Article

Works matching IS 0018019X AND DT 1991 AND VI 74 AND IP 5

Transesterifications with 1,8-Diazabicyclo[5.4.0]undec-7-ene/Lithium Bromide (DBU/LiBr) - Also Applicable to Cleavage of Peptides from Resins in Merrifleld Syntheses.

Chiral Cooperativity: The Effect of Distant Chiral Centers in Ferrocenylamine Ligands upon Enantioselectivity in the Gold(I)-Catalyzed Aldol Reaction.

Conformational Analysis of the cis- and trans-Isomers of FK506 by NMR and Molecular Dynamics.

Dimeric Metal Complexes as Mediators for Radical CC Bond-Forming Reactions.

Ionization Behavior and Ionization-Dependent Conformation of Raclopride, a Dopamine D<sub>2</sub> Receptor Antagonist.

3′-Substituted and 2′,3′-Unsaturated 7-Deazaguanine 2′,3′-Dideoxynucleosides: Syntheses and Inhibition of HIV-1 Reverse Transcriptase.

Masthead.

New Polycyclic Compounds from Photochemical Rearrangements of Some Substituted 2-Azatricyclo[5.2.2.0<sup>1,5</sup>]undeca-4,8,10-trien-3-ones.

CC Bond Formation via Carbon-Centered Radicals Generated from Dicarbonyl(η<sup>5</sup>-cyclopentadienyl) organoiron Complexes.

[5-Leucin]enkephalin-Related Glycoconjugates: Structurally Novel Agents Effective against HIV-1.

Nitroacetyl Group as a Peptide Synthon: Synthesis of Dipeptides with an α,α-Bisallylglycine Residue at the N-Terminus.

The Lewis basicity of the [Pt<sub>3</sub>(μ-CO)<sub>3</sub>(PR<sub>3</sub>)<sub>3</sub>] clusters and the X-ray crystal structure of [{ZnI<sub>2</sub>}{Pt<sub>3</sub>(μ-CO)<sub>3</sub>(PPh( i-Pr)<sub>2</sub>)<sub>3</sub>}].

Ringerweiterung von 1,2-Thiazol-3(2 H)-on-1,1-dioxiden und 3-Amino-2 H-azirinen zu 4 H-1,2,5-Thiadiazocin-6-on-1,1-dioxiden.

Regioselectivity, Stereoselectivity, and Isotopically Sensitive Branching in the Fe(I)-Mediated Dehydrogenation of Octane-1,8-diol in the Gas Phase.

Aromatic nucleophilic substitution. Part 3. Preparation of novel 9-oxo-9 H-thioxanthene- and 9-oxo-9 H-xanthenedicarboximides and -dicarboxylates.

Zur Oxidation von 1,2-Thiazolen: Ein einfacher Zugang zu 1,2-Thiazol-3(2 H)-on-1,1-dioxiden.

Synthesis and X-Ray Crystal Structure of an Optically Pure Tripodal C<sub>3</sub>-Symmetric Tritertiary Phosphine Bearing Chirality on Phosphorus.

Zur Synthese von Derivaten des Pyrido[1,2- a]azepins.

Stereo and Face Selectivity in Cycloadditions of 1,2,3-Trichloro-3-fluorocyclopropenes to Acyclic Dienes and Furans.

Synthesis of the Bretonins, Polyolefinic Esterified Glyceryl Ethers of an Unidentified Sponge from the North-Brittany Sea: Absolute Configuration and Novel Structure Assignment.

Imidazole-Analogues of 6-Epicastanospermine and of 3,7a-Diepialexine.

1,7-Dideaza-2′,3′-dideoxyadenosine: Syntheses of Pyrrolo[2,3- b]pyndine 2′,3′-Dideoxyribofuranosides and Participation of Purine N(1) during HIV-1 Reverse Transcriptase Inhibition.

Mitteilungen.

Synthesis, Isolation, and Full Spectroscopic Characterization of Eleven ( Z)-Isomers of (3 R,3′ R)-Zeaxanthin.

Photo-induced molecular transformations. Part 123. One-step synthesis of 1 H-benz[ f]indole-4,9-diones by a new regioselective photoaddition of 2-amino-1,4-naphthoquinone with various alkenes and its application to one-step synthesis of kinamycin skeleton