Works matching IS 0018019X AND DT 1990 AND VI 73 AND IP 4

Results: 35

Totalsynthese von natülichem α-Tocopherol. 5. Mitteilung. Asymmetrische Alkylierung und asymmetrische Epoxidierung als Methoden zur Einführung der ( R)-Konfiguration an C(2) des Chroman-Systems.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1068, doi. 10.1002/hlca.19900730431

By:

Hübscher, Josef;
Barrier, Richard

Publication type:

Article

Photochemical reactions. 152nd Communication. Photochemistry of acylsilanes; photolysis and thermolysis of cyclopropyl silyl ketones.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 922, doi. 10.1002/hlca.19900730420

By:

Scheller, Markus E.;
Frei, Bruno

Publication type:

Article

Tricyclic Pyridine Derivatives with High Affinity to the Central Benzodiazepine Receptor.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 763, doi. 10.1002/hlca.19900730402

By:

Fischer, Ulf;
Möhler, Hanns;
Schneider, Fernand;
Widmer, Ulrich

Publication type:

Article

Stereoselective Coordination to Chiral Matrices. Cobalt(III). Chemistry of Simple Facially Coordinating Chiral Triamines.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 874, doi. 10.1002/hlca.19900730413

By:

Comba, Peter;
Hörmann, Aldo;
Martin, Lisandra L.;
Zipper, Luc

Publication type:

Article

New Spirostaphylotrichins from the Mutant Strain P 649 of Staphylotrichum coccosporum: The Biogenetic Interrelationship of the Known Spirostaphylotrichins.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 975, doi. 10.1002/hlca.19900730424

By:

Sandmeier, Peter;
Tamm, Christoph

Publication type:

Article

Mitteilungen.

Published in:: Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1148, doi. 10.1002/hlca.19900730435
Publication type:: Article

Coralloidolide F, the First Example of a 2,6-Cyclized Cembranolide: Isolation from the Mediterranean Alcyonacean Coral Alcyonium coralloides.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 804, doi. 10.1002/hlca.19900730406

By:

D'Ambrosio, Michele;
Guerriero, Antonio;
Pietra, Francesco

Publication type:

Article

2 H-benzimidazoles. Part 5. Convenient synthons for tricyclic heterocycles.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 902, doi. 10.1002/hlca.19900730417

By:

Cada, Armin;
Kramer, Walter;
Neidlein, Richard;
Suschitzky, Hans

Publication type:

Article

The synthesis of DL-1-(hexadecanoyloxy)methyl- and 1- O-hexadecanoyl-inositols as potential inhibitors of phospholipase C.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1037, doi. 10.1002/hlca.19900730428

By:

James, D.;
Massy, R.;
Wyss, Pierre

Publication type:

Article

Pterin chemistry. Part 89. Natural primapterin belongs to the L-series of 7-(polyhydroxypropyl)pterins.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1064, doi. 10.1002/hlca.19900730430

By:

Viscontini, Max

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1990, v. 73, n. 4, p. fmi, doi. 10.1002/hlca.19900730401
Publication type:: Article

Technical Procedures for the Syntheses of Carotenoids and Related Compounds from 6-Oxo-isophorone: Syntheses of (3 R,3′ R)-Zeaxanthin. Part II.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 868, doi. 10.1002/hlca.19900730412

By:

Soukup, Milan;
Widmer, Erich;
Lukáč, Theodor

Publication type:

Article

Reaction of 3-Amino-2 H-azirines with 2-Amino-4,6-dinitrophenol (Picramic Acid): Synthesis of Quinazoline- and 1,3-Benzoxazole Derivatives.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 959, doi. 10.1002/hlca.19900730423

By:

Villalgordo, José M.;
Vincent, Beverly R.;
Heimgartner, Heinz

Publication type:

Article

A New Combined Purification/Phosphorylation Procedure for Oligodeoxynucleotides.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1139, doi. 10.1002/hlca.19900730434

By:

Banmvarth, Willi;
Wippier, Jürgen

Publication type:

Article

Synthese von 2,4-Diamino-thieno[2,3- d]pyrimidin-Derivaten.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 797, doi. 10.1002/hlca.19900730405

By:

Link, Helmut

Publication type:

Article

A Short Synthesis of (±)-Muscone.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 896, doi. 10.1002/hlca.19900730416

By:

Rautenstrauch, Valentin;
Snowden, Roger L.;
Linder, Simon M.

Publication type:

Article

Tetrahydrolipstatin: Thermal and Hydrolytic Degradation.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1022, doi. 10.1002/hlca.19900730427

By:

Stalder, Henri;
Schneider, Pierre R.;
Oesterhelt, Gottfried

Publication type:

Article

Konstitutionsisomerie in Polykondensaten. Teil VI. Synthese und Eigenschaften von völlig geordneten und ungeordneten Bipolyamiden aus cis-2,6-Dimethylpiperazin und 1,2,5-Thiadiazol-3,4-dicarbonyl-dichlorid.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 839, doi. 10.1002/hlca.19900730409

By:

Mühlebach, Andreas;
Pino, Piero

Publication type:

Article

Technical Procedures for the Syntheses of Carotenoids and Related Compounds from 6-Oxo-isophorone: Syntheses of (3 R,3′ R)-Zeaxanthin. Part I.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 861, doi. 10.1002/hlca.19900730411

By:

Widmer, Erich;
Soukup, Milan;
Zell, Reinhard;
Broger, Emil;
Wagner, Hans Peter;
Imfeld, Marquard

Publication type:

Article

Analogues of Sialic Acids as Potential Sialidase Inhibitors Synthesis of 2-C-Hydroxymethyl Derivatives of N-Acetyl-6-amino-2,6-dideoxy-neuraminic Acid.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 940, doi. 10.1002/hlca.19900730422

By:

Bernet, Bruno;
Murty, A. R. C. Bulusu;
Vasella, Andrea

Publication type:

Article

Die Synthese des Labdanditerpenes Erigerol und analoger Verbindungen.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1108, doi. 10.1002/hlca.19900730433

By:

Kienzle, Frank;
Stadlwieser, Josef;
Rank, Werner;
Schonholzer, Peter

Publication type:

Article

Ein neuer synthetischer Zugang zu Ubichinonen.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 790, doi. 10.1002/hlca.19900730404

By:

Rüttimann, August;
Lorenz, Peter

Publication type:

Article

Photorearrangement of 4,4-Dimethylcyclohex-2-enones with Alkyl or Fluoro Substituents at C(5) and C(6): In Search of the Mechanism.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 890, doi. 10.1002/hlca.19900730415

By:

Cruciani, Giuliano;
Margaretha, Paul

Publication type:

Article

Synthese der (3 S,4 R,3′ S,4′ R)- und (3 S,4 S,3′ S,4′ S)Crustaxanthine sowie weiterer Verbindungen mit 3,4-Dihydroxy-β-Endgruppen.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1002, doi. 10.1002/hlca.19900730426

By:

Buschor, Daniel Jacques;
Eugster, Conrad Hans

Publication type:

Article

Thermal 1,6-Electrocyclization Reactions of Acceptor-Substituted 2,3-Divinyl-1 H-indoles Yielding Functionalized Carbazoles.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 827, doi. 10.1002/hlca.19900730408

By:

Pindur, Ulf;
Adam, Reinhard

Publication type:

Article

Structure and Synthesis of (±)-Caudoxirene, a New Spermatozoid-Releasing and -Attracting Pheromone from the Marine Brown Alga Perithalia caudata (Phaeophyceae, Sporochnales). Part V.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 916, doi. 10.1002/hlca.19900730419

By:

Wirth, Dieter;
Boland, Wilhelm

Publication type:

Article

Photocycloaddition of Cyclohex-2-enones to Tetramethoxyethylene: Formation of 2,2,3,3-Tetramethoxy-1-oxaspiro[3.5]non-5-enes.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 856, doi. 10.1002/hlca.19900730410

By:

Cruciani, Giuliano;
Rathjen, Hans-Jürgen;
Margaretha, Paul

Publication type:

Article

Pteridine. Teil XCIV. Synthese und Eigenschaften von 5,6-Dihydro-6-(1,2,3-trihydroxypropyl)pteridinen: Kovalente intramolekulare Addukte.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 808, doi. 10.1002/hlca.19900730407

By:

Soyka, Rainer;
Pfleiderer, Wolfgang;
Prewo, Roland

Publication type:

Article

Eine neue Methode zur stereochemischen Analyse offenkettiger terpenoider Carbonyl-Verbindungen,.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1087, doi. 10.1002/hlca.19900730432

By:

Knierzinger, Andreas;
Walther, Willy;
Weber, Beat;
Müller, Robert Karl;
Netscher, Thomas

Publication type:

Article

Chromatographische Trennung und quantitative Bestimmung aller acht Stereoisomeren von α-Tocopherol.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 782, doi. 10.1002/hlca.19900730403

By:

Vecchi, Max;
Walther, Willy;
Glinz, Ernst;
Netscher, Thomas;
Schmid, Rudolf;
Lalonde, Michel;
Vetter, Walter

Publication type:

Article

Synthese von einigen 2 H-Pyran-2-on-Derivaten.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 883, doi. 10.1002/hlca.19900730414

By:

Kvita, Vratislav;
Sauter, Hanspeter

Publication type:

Article

Synthesis and Circular Dichroism of Optically Pure (±)-(1 S,2 S,5 S)-5-Methoxy-3,4,6,7-tetramethylidenebicyclo[3.2.1]oct-2-yl Derivatives. Baker's Yeast Reduction of 4-Methoxy-5,6,7,8-tetramethylidenebicyclo[2.2.2]octan-2-one.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 985, doi. 10.1002/hlca.19900730425

By:

Burnier, Gérald;
Vogel, Pierre

Publication type:

Article

Synthesis of rel-(3 RS,3a SR,7a SR)-3-(4-Chlorophenyl)-3a,4,5,6,7,7a-hexahydro-1-methylindolin-6-one, the Main Metabolite of the Analgesic Ro 15-8081: A Potent Amine-Uptake Inhibitor.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 932, doi. 10.1002/hlca.19900730421

By:

Bös, Michael;
Burkard, Willy P.;
Moreau, Jean-Luc;
Schönholzer, Peter

Publication type:

Article

The Syntheses of Purine and Pyrimidine Secoribo-nucleosides: Acyclo-uridine Derivative of Cyclophosphamide.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 912, doi. 10.1002/hlca.19900730418

By:

Zakerinia, Maryam;
Davary, Hady;
Hakimelahi, Gholam H.

Publication type:

Article

Pterin chemistry. Part 88. A simple synthesis of 5-Deoxy- L-[5-2H1]arabinose and L-[3′-2H1] biopterin.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1058, doi. 10.1002/hlca.19900730429

By:

Adier, Carmen;
Curtius, Hans-Christoph;
Datta, Subir;
Viscontini, Max

Publication type:

Article