Works matching IS 0018019X AND DT 1993 AND VI 76 AND IP 5

Results: 27

Masthead.

Published in:: Helvetica Chimica Acta, 1993, v. 76, n. 5, p. fmi, doi. 10.1002/hlca.19930760501
Publication type:: Article

Synthesis and NMR-Spectroscopic Structure Determination of Novel 7,7′-Diphenyl-7,7′-diapocarotenoids.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1939, doi. 10.1002/hlca.19930760512

By:

Hand, Elli S.;
Belmore, Kenneth A.;
Kispert, Lowell D.

Publication type:

Article

Oxidative Coupling of 6,6-Dimethylpentafulvenyl Anion.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2111, doi. 10.1002/hlca.19930760523

By:

You, Shaochun;
Neuenschwander, Markus;
Huber, Hanspeter

Publication type:

Article

Synthesis of Aristotelia-Type Alkaloids. Part XII. Total synthesis of (−)-tasmanine. Stereoelectronic factors that control the rearrangement of 3 H-indol-3-ol derivatives to oxindoles ( = 1,3-dihydro-2 H-indol-2-ones) or to pseudoindoxyls ( =1,2-dihydro-3 H-indol-3-ones)

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1847, doi. 10.1002/hlca.19930760505

By:

Güller, Rolf;
Borschberg, Hans-Jürg

Publication type:

Article

Pteridines. Part C. Structure and nonenzymatic synthesis of aurodrosopterin.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1970, doi. 10.1002/hlca.19930760516

By:

Yim, Jeongbin;
Kim, Sujeong;
Walcher, Gunter;
Pfleiderer, Wolfgang

Publication type:

Article

Mitteilungen.

Published in:: Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2160, doi. 10.1002/hlca.19930760527
Publication type:: Article

Synthese von Alkylphenolen und -pyrocatecholen aus Plectranthus albidus ( Labiatae).

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1901, doi. 10.1002/hlca.19930760509

By:

Bürgi, Christoph;
Liu, Gui;
Rüedi, Peter

Publication type:

Article

The Effect of Electron-Donating and Electron-Withdrawing Substituents on 1H-and 13C-NMR chemical shifts of novel 7′-aryl-substituted 7′-apo-β-carotenes.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1928, doi. 10.1002/hlca.19930760511

By:

Hand, Elli S.;
Belmore, Kenneth A.;
Kispert, Lowell D.

Publication type:

Article

Synthese und Pyrolyse einer Triafulven-Vorstufe.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2089, doi. 10.1002/hlca.19930760522

By:

Mühlebach, Michel;
Neuenschwander, Markus;
Engel, Peter

Publication type:

Article

Introduction of a New Class of Ligands for the Metal-Catalyzed Enantioselective Synthesis.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1832, doi. 10.1002/hlca.19930760504

By:

Spescha, Maurus

Publication type:

Article

Complex Formation of PdII Ion with the Tripodal Ligand Tris[2-(dimethylamino)ethyl]amine.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1964, doi. 10.1002/hlca.19930760515

By:

Anderegg, Giorgio;
Melichar, Zdenek

Publication type:

Article

The Crystal Structure of C70 · 6(S8) at 100 K.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2155, doi. 10.1002/hlca.19930760526

By:

Bürgi, Hans Beat;
Venugopalan, Paloth;
Schwarzenbach, Dieter;
Diederich, François;
Thilgen, Carlo

Publication type:

Article

Isolierung und Struktur von langkettigen Alkylphenolen und -pyrocatecholen aus Plectranthus albidus ( Labiatae).

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1890, doi. 10.1002/hlca.19930760508

By:

Bürgi, Christoph;
Rüedi, Peter

Publication type:

Article

Catalytic Cyclophanes. Part VIII. Cytochrome P-450 activity of a porphyrin-bridged cyclophane.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2034, doi. 10.1002/hlca.19930760519

By:

Benson, David R.;
Valentekovich, Robert;
Tam, Suk-Wah;
Diederich, François

Publication type:

Article

Hetero- Diels- Alder cycloadditions of α,β-unsaturated acyl cyanides. Part 2. Reactions with N, N-dimethyluracils, a new route to 5-substituted uracil derivatives.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1916, doi. 10.1002/hlca.19930760510

By:

Zhuo, Jin-Cong;
Wyler, Hugo

Publication type:

Article

Preparation of optically active flowery and woody-like odorant ketones via Corey- Chaykovsky oxiranylation: Irones and analogues.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2070, doi. 10.1002/hlca.19930760521

By:

Chapuis, Christian;
Brauchli, Robert

Publication type:

Article

Preparation and ESR-Spectroscopical Investigation of Remarkably Persistent Oxoisobenzofuranyl Radicals.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1821, doi. 10.1002/hlca.19930760503

By:

Kruppa, Gary;
Hug, Paul;
Liégard, André;
Rist, Guenther;
Nesvadba, Petr

Publication type:

Article

Synthesis and Monoamine Oxidase Inhibitory Activity of 3-Substituted 5 H-Indeno[1,2- c]pyridazines.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1956, doi. 10.1002/hlca.19930760514

By:

Kneubühler, Silvia;
Testa, Bernard;
Carta, Vincenzo;
Altomare, Cosimo;
Carotti, Angelo

Publication type:

Article

Thiocarbonyl-imide aus der Umsetzung von 2,2,4,4-Tetramethyl-3-thioxocyclobutanon mit Aryl-aziden.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2147, doi. 10.1002/hlca.19930760525

By:

Mlostoń, Grzegorz;
Romański, Jaroslaw;
Linden, Anthony;
Heimgartner, Heinz

Publication type:

Article

Chiral Acylsilanes in Organic Synthesis. Part 2. The role of the solvent, the organometallic reagent, and the nature of the substrate for the diastereoselectivity of 1,2-additions to racemic alkoxymethyl-substituted acylsilanes.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1876, doi. 10.1002/hlca.19930760507

By:

Chapeaurouge, Alexander;
Bienz, Stefan

Publication type:

Article

Cyclische Oligomere von ( R)-3-Hydroxybuttersäure: Herstellung und strukturelle Aspekte.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2004, doi. 10.1002/hlca.19930760518

By:

Plattner, Diemar A.;
Brunner, Andreas;
Dobler, Max;
Müller, Hans-Martin;
Petter, Walter;
Zbinden, Peter;
Seebach, Dieter

Publication type:

Article

The Donor-Acceptor-Acceptor Purine Analog: Transformation of 5-aza-7-deaza-1 H-isoguanine (=4-aminoimidazo-[1,2- a]-1,3,5-triazin-2(1 H)-one) to 2′-deoxy-5-aza-7-deaza-isoguanosine using purine nucleoside phosphorylase.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2061, doi. 10.1002/hlca.19930760520

By:

Voegel, Johannes J.;
Altorfer, Michael M.;
Benner, Steven A.

Publication type:

Article

7- Deazaadenosine: Oligoribonucleotide building block synthesis and autocatalytic hydrolysis of base-modified hammerhead ribozymes.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1809, doi. 10.1002/hlca.19930760502

By:

Seela, Frank;
Mersmann, Karin;
Grasby, Jane A.;
Gait, Michael J.

Publication type:

Article

Synthesis and Absolute Configuration of the C12-Terpenoid Dehydrogeosmin from the Flower Scents of Rebutia marsoneri and Dolichothele sphaerica (Cactaceae); a new approach to bis-angularly substituted trans-decalins.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1949, doi. 10.1002/hlca.19930760513

By:

Huber, Udo;
Boland, Wilhelm;
König, Wilfried A.;
Gehrcke, Bärbel

Publication type:

Article

Magnetic-Field-Dependent Electronic Relaxation of Gd3+ in Aqueous Solutions of the Complexes [Gd(H2O)8]3+, [Gd(propane-1,3-diamine- N, N, N′, N′-tetraacetate)(H2O)2]−, and [Gd( N, N′-bis[( N-methylcarbamoyl)methyl]-3-azapentane-1,5-diamine-3, N, N′-triacetate)(H2O)] of interest in magnetic-resonance imaging

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 2129, doi. 10.1002/hlca.19930760524

By:

Powell, D. Hugh;
Merbach, André E.;
González, Gabriel;
Brücher, Ernö;
Micskei, Károly;
Ottaviani, M. Francesca;
Köhler, Klaus;
Von Zelewsky, Alex;
Grinberg, Oleg Ya.;
Lebedev, Yakob S.

Publication type:

Article

Conformational Analysis of Open-Chain 1,2:3,4-Diepoxides: Comparison of crystal structures, NMR data, and molecular-orbital calculations.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1863, doi. 10.1002/hlca.19930760506

By:

Bur, Daniel;
Nikles, Martin;
Séquin, Urs;
Neuburger, Markus;
Zehnder, Margareta

Publication type:

Article

Umsetzung von 3-Amino-2 H-azirinen mit Salicylohydrazid.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 5, p. 1980, doi. 10.1002/hlca.19930760517

By:

Magirius, Florian;
Linden, Anthony;
Heimgartner, Heinz

Publication type:

Article

Works matching IS 0018019X AND DT 1993 AND VI 76 AND IP 5

Masthead.

Synthesis and NMR-Spectroscopic Structure Determination of Novel 7,7′-Diphenyl-7,7′-diapocarotenoids.

Oxidative Coupling of 6,6-Dimethylpentafulvenyl Anion.

Synthesis of Aristotelia-Type Alkaloids. Part XII. Total synthesis of (−)-tasmanine. Stereoelectronic factors that control the rearrangement of 3 H-indol-3-ol derivatives to oxindoles ( = 1,3-dihydro-2 H-indol-2-ones) or to pseudoindoxyls ( =1,2-dihydro-3 H-indol-3-ones)

Pteridines. Part C. Structure and nonenzymatic synthesis of aurodrosopterin.

Mitteilungen.

Synthese von Alkylphenolen und -pyrocatecholen aus Plectranthus albidus ( Labiatae).

The Effect of Electron-Donating and Electron-Withdrawing Substituents on <sup>1</sup>H-and <sup>13</sup>C-NMR chemical shifts of novel 7′-aryl-substituted 7′-apo-β-carotenes.

Synthese und Pyrolyse einer Triafulven-Vorstufe.

Introduction of a New Class of Ligands for the Metal-Catalyzed Enantioselective Synthesis.

Complex Formation of Pd<sup>II</sup> Ion with the Tripodal Ligand Tris[2-(dimethylamino)ethyl]amine.

The Crystal Structure of C<sub>70</sub> · 6(S<sub>8</sub>) at 100 K.

Isolierung und Struktur von langkettigen Alkylphenolen und -pyrocatecholen aus Plectranthus albidus ( Labiatae).

Catalytic Cyclophanes. Part VIII. Cytochrome P-450 activity of a porphyrin-bridged cyclophane.

Hetero- Diels- Alder cycloadditions of α,β-unsaturated acyl cyanides. Part 2. Reactions with N, N-dimethyluracils, a new route to 5-substituted uracil derivatives.

Preparation of optically active flowery and woody-like odorant ketones via Corey- Chaykovsky oxiranylation: Irones and analogues.

Preparation and ESR-Spectroscopical Investigation of Remarkably Persistent Oxoisobenzofuranyl Radicals.

Synthesis and Monoamine Oxidase Inhibitory Activity of 3-Substituted 5 H-Indeno[1,2- c]pyridazines.

Thiocarbonyl-imide aus der Umsetzung von 2,2,4,4-Tetramethyl-3-thioxocyclobutanon mit Aryl-aziden.

Chiral Acylsilanes in Organic Synthesis. Part 2. The role of the solvent, the organometallic reagent, and the nature of the substrate for the diastereoselectivity of 1,2-additions to racemic alkoxymethyl-substituted acylsilanes.

Cyclische Oligomere von ( R)-3-Hydroxybuttersäure: Herstellung und strukturelle Aspekte.

The Donor-Acceptor-Acceptor Purine Analog: Transformation of 5-aza-7-deaza-1 H-isoguanine (=4-aminoimidazo-[1,2- a]-1,3,5-triazin-2(1 H)-one) to 2′-deoxy-5-aza-7-deaza-isoguanosine using purine nucleoside phosphorylase.

7- Deazaadenosine: Oligoribonucleotide building block synthesis and autocatalytic hydrolysis of base-modified hammerhead ribozymes.

Synthesis and Absolute Configuration of the C<sub>12</sub>-Terpenoid Dehydrogeosmin from the Flower Scents of Rebutia marsoneri and Dolichothele sphaerica (Cactaceae); a new approach to bis-angularly substituted trans-decalins.

Conformational Analysis of Open-Chain 1,2:3,4-Diepoxides: Comparison of crystal structures, NMR data, and molecular-orbital calculations.

Umsetzung von 3-Amino-2 H-azirinen mit Salicylohydrazid.