Works matching IS 0018019X AND DT 1991 AND VI 74 AND IP 1

Results: 24

Rogiolenyne A, B, and C: The First Branched Marine C15 Acetogenins. Isolation from the Red Seaweed Laurencia microcladia or the Sponge Spongia zimocca of II Rogiolo.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 47, doi. 10.1002/hlca.19910740107

By:

Guella, Graziano;
Pietra, Francesco

Publication type:

Article

1-Methoxycarbonyl-substituiertes 2,3-Dihydropyridin-4(1 H)-on (= Methyl-1,2,3,4-tetrahydro-4-oxopyridin-1-carboxylat) als Chromophor für die photochemische [2 + 2]-Cycloaddition.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 163, doi. 10.1002/hlca.19910740118

By:

Guerry, Philippe;
Blanco, Philippe;
Brodbeck, Heinz;
Pasteris, Olivier;
Neier, Reinhard

Publication type:

Article

(Cycloheptatrienyl)hydridotungsten Complexes.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 189, doi. 10.1002/hlca.19910740120

By:

Schwed, Elke;
Hund, Hans-Ulrich;
Bosch, H. William;
Berke, Heinz

Publication type:

Article

Instructions to Authors (1991).

Published in:: Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 1, doi. 10.1002/hlca.19910740102
Publication type:: Article

Synthesis of Aristotelia-Type Alkaloids. Part VIBiomimetic Synthesis of (+)-Aristofruticosine.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 110, doi. 10.1002/hlca.19910740113

By:

Beerli, René;
Borschberg, Hans-Jürg

Publication type:

Article

Mitteilungen.

Published in:: Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 241, doi. 10.1002/hlca.19910740124
Publication type:: Article

A New General Synthesis of 2,2-Dialkyl-2,3-dihydro-4 H-pyran-4-ones and Their Application for the in situ Preparation of Electron-Rich Dienes in Carbonyl-Alkyne Exchange Reactions with Acetylenes.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 27, doi. 10.1002/hlca.19910740106

By:

Obrecht, Daniel

Publication type:

Article

Reductive Radical Cyclisations of Bromo Acetals and (Bromomethyl)silyl Ethers of Terpenoid Alcohols.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 146, doi. 10.1002/hlca.19910740117

By:

Lee, Edward R.;
Lakomy, Ivo;
Bigler, Peter;
Scheffold, Rolf

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1991, v. 74, n. 1, p. fmi, doi. 10.1002/hlca.19910740101
Publication type:: Article

Asymmetric Diels-Alder Cycloadditions with C2-Symmetrical Chiral Carbamoylnitroso Dienophiles.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 103, doi. 10.1002/hlca.19910740112

By:

Defoin, Albert;
Brouillard-Poichet, Agnès;
Streith, Jacques

Publication type:

Article

C2-Symmetric 4,4′,5,5′-Tetrahydrobi(oxazoles) and 4,4′,5,5′-Tetrahydro-2,2′-methylenebis[oxazoles] as Chiral Ligands for Enantioselective Catalysis Preliminary Communication.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 232, doi. 10.1002/hlca.19910740123

By:

Müller, Dieter;
Umbricht, Gisela;
Weber, Beat;
Pfaltz, Andreas

Publication type:

Article

New Synthetic Route to Polyhedral Organylsilsesquioxanes.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 24, doi. 10.1002/hlca.19910740105

By:

Herren, Daniel;
Bürgy, Heribert;
Calzaferri, Gion

Publication type:

Article

Le (−)-(2 S)-2-Hydroxyhexanedioate de diéthyle, nouveau bloc chiral pour la synthèse énantiospécifique.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 141, doi. 10.1002/hlca.19910740116

By:

Blaser, Florian;
Deschenaux, Pierre-François;
Kallimopoulos, Thomas;
Jacot-Guillarmod, André

Publication type:

Article

Structural and Luminescence Study of the 3:2 Complex between Europium Nitrate and the B Isomer of Dicyclohexyl-18-crown-6.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 65, doi. 10.1002/hlca.19910740109

By:

Moret, Emmanuel;
Nicolò, Francesco;
Plancherel, Dominique;
Froidevaux, Pascal;
Bünzli, Jean-Claude G.;
Chapuis, Gervais

Publication type:

Article

Michael Reactions of α-Unsubstituted Trisubstituted 1 H-Pyrroles.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 91, doi. 10.1002/hlca.19910740111

By:

Lüönd, Rainer;
Neier, Reinhard

Publication type:

Article

Photochemical Reactions of Tetrahydroquinoxalin-2(1 H)-ones and Related Compound.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 225, doi. 10.1002/hlca.19910740122

By:

Nishio, Takehiko;
Kondo, Masaji;
Omote, Yoshimori

Publication type:

Article

Nucleotides. Part XXXIVSynthesis of Modified Oligomeric 2′-5′A Analogues: Potential Antiviral Agents.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 7, doi. 10.1002/hlca.19910740104

By:

Herdewijn, Piet;
Ruf, Klaus;
Pfleiderer, Wolfgang

Publication type:

Article

2,3- and 4,5-Secodopa, the Biosynthetic Intermediates Generated from L-Dopa by an Enzyme System Extracted from the Fly Agaric, Amanita muscaria L., and Their Spontaneous Conversion to Muscaflavin and Betalamic Acid, Respectively, and Betalains.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 124, doi. 10.1002/hlca.19910740115

By:

Terradas, Fernand;
Wyler, Hugo

Publication type:

Article

Generation and Trapping of Cyclopropenes from 2-Alkoxy-1,1-dichlorocyclopropanes.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 55, doi. 10.1002/hlca.19910740108

By:

Müller, Paul;
Pautex, Nicole

Publication type:

Article

Structure and Synthesis of Novel C12 Terpenoids from Quince Fruit ( Cydonia oblonga MILL.).

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 179, doi. 10.1002/hlca.19910740119

By:

Escher, Sina;
Niclass, Yvan

Publication type:

Article

1 H-Phenalen-1-one: Photophysical Properties and Singlet-Oxygen Production.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 79, doi. 10.1002/hlca.19910740110

By:

Oliveros, Esther;
Suardi-Murasecco, Patricia;
Aminian-Saghafi, Taraneh;
Braun, André M.;
Hansen, Hans-Jürgen

Publication type:

Article

C-Alkylation of Peptides through Polylithiated and LiCl-Solvated Derivatives Containing Sarcosine Li-Enolate Units.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 197, doi. 10.1002/hlca.19910740121

By:

Seebach, Dieter;
Bossler, Hans;
Gründler, Hansjörg;
Shoda, Shin-Ichiro;
Wenger, Roland

Publication type:

Article

Synthesis and Structure of the Copper(II) Complex of a Chiral Bis(dihydrooxazole) Ligand.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 1, doi. 10.1002/hlca.19910740103

By:

Hall, Jonathan;
Lehn, Jean-Marie;
DeCian, André;
Fischer, Jean

Publication type:

Article

Neurotoxic Sesquiterpenoids from the Yellow Star Thistle Centaurea solstitialis L. (Asteraceae).

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 117, doi. 10.1002/hlca.19910740114

By:

Wang, Ying;
Hamburger, Matthias;
Cheng, Celine H. K.;
Costall, Brenda;
Naylor, Robert J.;
Jenner, Peter;
Hostettmann, Kurt

Publication type:

Article

Works matching IS 0018019X AND DT 1991 AND VI 74 AND IP 1

Rogiolenyne A, B, and C: The First Branched Marine C<sub>15</sub> Acetogenins. Isolation from the Red Seaweed Laurencia microcladia or the Sponge Spongia zimocca of II Rogiolo.

1-Methoxycarbonyl-substituiertes 2,3-Dihydropyridin-4(1 H)-on (= Methyl-1,2,3,4-tetrahydro-4-oxopyridin-1-carboxylat) als Chromophor für die photochemische [2 + 2]-Cycloaddition.

(Cycloheptatrienyl)hydridotungsten Complexes.

Instructions to Authors (1991).

Synthesis of Aristotelia-Type Alkaloids. Part VIBiomimetic Synthesis of (+)-Aristofruticosine.

Mitteilungen.

A New General Synthesis of 2,2-Dialkyl-2,3-dihydro-4 H-pyran-4-ones and Their Application for the in situ Preparation of Electron-Rich Dienes in Carbonyl-Alkyne Exchange Reactions with Acetylenes.

Reductive Radical Cyclisations of Bromo Acetals and (Bromomethyl)silyl Ethers of Terpenoid Alcohols.

Masthead.

Asymmetric Diels-Alder Cycloadditions with C<sub>2</sub>-Symmetrical Chiral Carbamoylnitroso Dienophiles.

C<sub>2</sub>-Symmetric 4,4′,5,5′-Tetrahydrobi(oxazoles) and 4,4′,5,5′-Tetrahydro-2,2′-methylenebis[oxazoles] as Chiral Ligands for Enantioselective Catalysis Preliminary Communication.

New Synthetic Route to Polyhedral Organylsilsesquioxanes.

Le (−)-(2 S)-2-Hydroxyhexanedioate de diéthyle, nouveau bloc chiral pour la synthèse énantiospécifique.

Structural and Luminescence Study of the 3:2 Complex between Europium Nitrate and the B Isomer of Dicyclohexyl-18-crown-6.

Michael Reactions of α-Unsubstituted Trisubstituted 1 H-Pyrroles.

Photochemical Reactions of Tetrahydroquinoxalin-2(1 H)-ones and Related Compound.

Nucleotides. Part XXXIVSynthesis of Modified Oligomeric 2′-5′A Analogues: Potential Antiviral Agents.

2,3- and 4,5-Secodopa, the Biosynthetic Intermediates Generated from L-Dopa by an Enzyme System Extracted from the Fly Agaric, Amanita muscaria L., and Their Spontaneous Conversion to Muscaflavin and Betalamic Acid, Respectively, and Betalains.

Generation and Trapping of Cyclopropenes from 2-Alkoxy-1,1-dichlorocyclopropanes.

Structure and Synthesis of Novel C<sub>12</sub> Terpenoids from Quince Fruit ( Cydonia oblonga MILL.).

1 H-Phenalen-1-one: Photophysical Properties and Singlet-Oxygen Production.

C-Alkylation of Peptides through Polylithiated and LiCl-Solvated Derivatives Containing Sarcosine Li-Enolate Units.

Synthesis and Structure of the Copper(II) Complex of a Chiral Bis(dihydrooxazole) Ligand.

Neurotoxic Sesquiterpenoids from the Yellow Star Thistle Centaurea solstitialis L. (Asteraceae).