Works matching IS 0018019X AND DT 1981 AND VI 64 AND IP 7

Results: 59

Partialsynthese der Grandidone A, 7-Epi-A, B, 7-Epi-B, C, D und 7-Epi-D aus 14-Hydroxytaxodion.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2251, doi. 10.1002/hlca.19810640730

By:

Rüedi, Peter;
Uchida, Masaaki;
Eugster, Conrad Hans

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1981, v. 64, n. 7, p. fmi, doi. 10.1002/hlca.19810640701
Publication type:: Article

Magnetic Circular Dichroism and Absorption Spectra of 2-Methyl-1, 3-diazaazulene.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2356, doi. 10.1002/hlca.19810640741

By:

Yamaguchi, Hiroyuki;
Ata, Masafumi;
Toyoda, Koichi;
Mametsuka, Hiroaki;
Takeshita, Hitoshi;
Baumann, Harold

Publication type:

Article

Synthesis and Biological Properties of Enkephalin-like Peptides Containing Carboranylalanine in Place of Phenylalanine.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2078, doi. 10.1002/hlca.19810640712

By:

Schwyzer, Robert;
Do, Kim Quang;
Eberle, Alex N.;
Fauchére, Jean-Luc

Publication type:

Article

Technische Verfahren zur Synthese von Carotinoiden und verwandten Verbindungen aus 6-Oxo-isophoron. III. Ein neues Konzept für die Synthese der enantiomeren Astaxanthine.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2447, doi. 10.1002/hlca.19810640752

By:

Zell, Reinhard;
Widmer, Erich;
Lukáč, Teodor;
Leuenberger, Hans Georg Wilhelm;
Schönholzer, Peter;
Broger, Emil A.

Publication type:

Article

Characterization of the Excited State Properties of Some New Photosensitizers of the Ruthenium (Polypyridine) Family.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2175, doi. 10.1002/hlca.19810640723

By:

Juris, Alberto;
Balzani, Vincenzo;
Belser, Peter;
von Zelewsky, Alex

Publication type:

Article

Über einen neuartigen synthetischen Zugang zu β,γ-ungesättigten α-Aminocarbonsäuren.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2279, doi. 10.1002/hlca.19810640734

By:

Heinzer, Franz;
Belluš, Daniel

Publication type:

Article

3-Triethylsilyloxypentadienyllithium, a Versatile 1,3-Diene- or Vinyl Ketone-Building Block.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2002, doi. 10.1002/hlca.19810640705

By:

Oppolzer, Wolfgang;
Snowden, Roger L.;
Simmons, Dana P.

Publication type:

Article

Temperature and Concentration Dependent Circular Dichroism of Mono- and Di- cis Isomers of (3 S,3′ S)-Astaxanthin Diacetate.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2383, doi. 10.1002/hlca.19810640745

By:

Noack, Klaus;
Thomson, Andrew J.

Publication type:

Article

Bestimmung des Enantiomerenüberschusses von chiralen Ammonium-Ionen mit Hilfe von Flüssigmembranelektroden.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2101, doi. 10.1002/hlca.19810640716

By:

Bussmann, Walter;
Simon, Wilhelm

Publication type:

Article

A Short and Efficient Synthesis of (±)-Modhephene by a Stereoelectronically-Controlled Ene-Reaction.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2489, doi. 10.1002/hlca.19810640756

By:

Oppolzer, Wolfgang;
Bättig, Kurt

Publication type:

Article

Synthesis of Phenyl- and Benzyl-Substituted Pyrrolidines and of a Piperidine by Intramolecular C-Alkylation. Synthons for tricyclic skeletons.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2203, doi. 10.1002/hlca.19810640727

By:

Achini, Roland

Publication type:

Article

Crystal Structure and Absolute Configuration of (+)-(1 S, 2 R)-5, 6-Dimethylidene-2 exo-norbornyl- exo-irontricarbonyl p-Bromobenzoate.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2328, doi. 10.1002/hlca.19810640738

By:

Barras, Charles;
Roulet, Raymond;
Chapuis, Gervais

Publication type:

Article

Triplet Lifetime Determination of Molecules in the Gas Phase by T-T Energy Transfer.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2048, doi. 10.1002/hlca.19810640709

By:

Brühlmann, Ueli;
Huber, J. Robert

Publication type:

Article

Technische Verfahren zur Synthese von Carotinoiden und verwandten Verbindungen aus Oxo-isophoron. I. Modifizierung der Kienzle-Mayer-Synthese von (3 S 3′ S)-Astaxanthin.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2405, doi. 10.1002/hlca.19810640749

By:

Widmer, Erich;
Zell, Reinhard;
Lukáč, Teodor;
Casadei, Marco;
Schönholzer, Peter;
Broger, Emil A.

Publication type:

Article

Détermination de la configuration de glycosylaziridines par dichroïsme circulaire. Note de laboratoire.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2350, doi. 10.1002/hlca.19810640740

By:

Tronchet, Jean M. J.;
Winter-Mihaly, Eva;
Massoud, Mohamed A. M.;
Martin, Olivier R.;
Barbalat-Rey, Françoise;
Ojha-Poncet, Joëlle;
Giust, Josiane

Publication type:

Article

Biosynthesis of the Cytochalasans. Biosynthetic studies on chaetoglobosin A and 19- O-acetylchaetoglobosin A.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2065, doi. 10.1002/hlca.19810640711

By:

Probst, Alessandro;
Tamm, Christoph

Publication type:

Article

Technische Verfahren zur Synthese von Carotinoiden und verwandten Verbindungen aus 6-Oxo-isophoron. II. Ein neues Konzept für die Synthese von (3 RS, 3′ RS)-Astaxanthin.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2436, doi. 10.1002/hlca.19810640751

By:

Widmer, Erich;
Zell, Reinhard;
Broger, Emil Albin;
Crameri, Yvo;
Wagner, Hans Peter;
Dinkel, Josef;
Schlageter, Markus;
Lukáč, T+odor

Publication type:

Article

Zur Biosynthese der Rubratoxine.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2162, doi. 10.1002/hlca.19810640722

By:

Nieminen, Sirkku;
Payne, Trevor G.;
Senn, Peter;
Tamm, Christoph

Publication type:

Article

1,6-Additionen an 3-Methyl-5-methyliden-2-(5 H)-furanon-Derivate.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2272, doi. 10.1002/hlca.19810640733

By:

Wyss, Heinz;
Révész, Laszlo;
Scheffold, Rolf

Publication type:

Article

Ionization Energies of Methyl-substituted[2.2]Paracyclophanes.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 1991, doi. 10.1002/hlca.19810640704

By:

Zhong-zhi, Yang;
Kovač, Branka;
Heilbronner, Edgar;
Eltamany, Sayed;
Hopf, Henning

Publication type:

Article

One-Bond 13C, 13C-Spin Coupling in η4-, η3- and η2-Olefin Transition Metal Complexes.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2378, doi. 10.1002/hlca.19810640744

By:

Zobl-Ruh, Susanne;
von Philipsborn, Wolfgang

Publication type:

Article

Die Produkte der Thermolyse von N-(1-Pyridinio)-2-nitroaniliden sind keine Triaziridine, sondern 1, 2-Bis[(2′-nitrophenyl)-azoxyl]-benzole.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2095, doi. 10.1002/hlca.19810640715

By:

Hilpert, Hans;
Hoesch, Lienhard;
Dreiding, André S.

Publication type:

Article

Enantioselective Addition of Chiral Organotitanium Derivatives to Aldehydes.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2485, doi. 10.1002/hlca.19810640755

By:

Olivero, Alan G.;
Weidmann, Beat;
Seebach, Dieter

Publication type:

Article

Fragmentation of Homoallylic Alkoxides. Thermolysis of potassium 2-substituted bicyclo [2.2.2]oct-5-en-2-alkoxides.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2193, doi. 10.1002/hlca.19810640726

By:

Snowden, Roger L.;
Schulte-Elte, Karl H.

Publication type:

Article

19- O-Acetylchaetoglobosin B and 19- O-Acetylchaetoglobosin D, Two New Metabolites of Chaetomium globosum.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2056, doi. 10.1002/hlca.19810640710

By:

Probst, Alessandro;
Tamm, Christoph

Publication type:

Article

Effect of Self-Assembly of Amphiphilic Redox-Chromophores on Photoionization Processes.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2036, doi. 10.1002/hlca.19810640708

By:

Humphry-Baker, Robin;
Braun, André M.;
Grätzel, Michael

Publication type:

Article

Iridoid and Aryl Glucosides from Globularia nudicaulis and Globularia nana.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2401, doi. 10.1002/hlca.19810640748

By:

Chaudhuri, Ratan K.;
Salama, Osama;
Sticher, Otto

Publication type:

Article

Nucleosides and Nucleotides. Part 17. A simple preparation of protected deoxynucleoside-3'-phosphates.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2142, doi. 10.1002/hlca.19810640719

By:

Bernardini, Silvio;
Waldmeier, Felix;
Tamm, Christoph

Publication type:

Article

Mitteilungen - Communications.

Published in:: Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2497, doi. 10.1002/hlca.19810640759
Publication type:: Article

Synthèse de nouveaux types de dérivés C-glycosyliques à partir de sucres acétyléniques ou de leurs équivalents synthétiques partiels.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2322, doi. 10.1002/hlca.19810640737

By:

Tronchet, Jean M. J.;
Bonenfant, Alain P.

Publication type:

Article

Synthese von Astaxanthin aus β-Jonon. I. Erschliessung der enantiomeren C15- Wittigsalze durch chemische und mikrobiologische Racematspaltung von (±)-3-Acetoxy-4-oxo-β-jonon.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2419, doi. 10.1002/hlca.19810640750

By:

Becher, Elisabeth;
Albrecht, Robert;
Bernhard, Kurt;
Leuenberger, Hans G. W.;
Mayer, Hans;
Müller, Robert K.;
Schüep, Willy;
Wagner, Hans P.

Publication type:

Article

EPR. Spectroscopic Investigations of Planar Cu (II)- and Low-Spin Co (II)-Complexes in Nematic Phases and in Single Crystals.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2154, doi. 10.1002/hlca.19810640721

By:

von Zelewsky, Alex;
Zobrist, Markus

Publication type:

Article

Improved Nitroaldol Reactions and Reductive Routes to Vicinal Aminoalcohols.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2264, doi. 10.1002/hlca.19810640732

By:

Colvin, Ernest W.;
Beck, Albert K.;
Seebach, Dieter

Publication type:

Article

Laser-Induced Fluorescence and Photoelectron-Photon Coincidence Studies of 3,5-Octadiyne Cation.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 1985, doi. 10.1002/hlca.19810640703

By:

Maier, John P.;
Misev, Liubomir;
Thommen, Fritz

Publication type:

Article

Reactions of 2-Diisopropylamino-3, 7-dehydrotropone: Conversion to the thione and dimerization.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2369, doi. 10.1002/hlca.19810640743

By:

Gray, Robert W.;
Dreiding, André S.

Publication type:

Article

Synthesis, Characterization, and Biological Properties of Five Enkephalin-like Pentapeptides Containing p-Nitrophenylalanine.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2090, doi. 10.1002/hlca.19810640714

By:

Fauchère, Jean-Luc;
Schiller, Peter W.

Publication type:

Article

Synthese von optisch aktiven, natürlichen Carotinoiden und strukturell verwandten Naturprodukten. IX. Synthese von (3 R)-Hydroxyechinenon, (3 R, 3′ R)- und (3 R, 3′ S)-Adonixanthin, (3 R)-Adonirubin, deren optischen Antipoden und verwandten Verbindungen

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2469, doi. 10.1002/hlca.19810640754

By:

Bernhard, Kurt;
Englert, Gerhard;
Mayer, Hans;
Müller, Robert K.;
Rüttimann, August;
Vecchi, Max;
Widmer, Erich;
Zell, Reinhard

Publication type:

Article

Self-Sensitized Photo-Oxygenation of 1-Benzyl-3, 4-dihydroisoquinolines.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2189, doi. 10.1002/hlca.19810640725

By:

Martin, Ned H.;
Jefford, Charles W.

Publication type:

Article

Carbon Participation in the Solvolysis of 6- endo-Substituted 2- exo-Norbornyl Toluenesulfonates. Norbornanes part 6.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2312, doi. 10.1002/hlca.19810640736

By:

Grob, Cyril A.;
Günther, Bettina;
Hanreich, Reinhard

Publication type:

Article

The Photoelectron Spectra of 4, 13-Diaza- and 4, 16-Diaza [24] (1,2,4,5)cyclophanes.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2029, doi. 10.1002/hlca.19810640707

By:

Zhong-zhi, Yang;
Heilbronner, Edgar;
Kang, Hee Chol;
Boekelheide, Virgil

Publication type:

Article

The Occurrence of Some Novel Diesters in Roman Camomile Oil.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2397, doi. 10.1002/hlca.19810640747

By:

Thomas, Alan F.

Publication type:

Article

(25 S)-1α, 25, 26-Trihydroxycholecalciferol, a New Vitamin D3 Metabolite: Synthesis and Absolute Stereochemistry at C(25).

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2138, doi. 10.1002/hlca.19810640718

By:

Partridge, John J.;
Shiuey, Shian-Jan;
Chadha, Naresh K.;
Baggiolini, Enrico G.;
Hennessy, Bernard M.;
Uskoković, Milan R.;
Napoli, Joseph L.;
Reinhardt, Timothy A.;
Horst, Ron L.

Publication type:

Article

Errata.

Published in:: Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2495, doi. 10.1002/hlca.19810640758
Publication type:: Article

14-Hydroxytaxodion als Hauptditerpen in Plectranthus grandidentatus G ÜRKE; Isolierung von sieben neuen dimeren Diterpenen aus P. grandidentatus, P. myrianthus B RIQ. und Coleus carnosus H ASSK.: Strukturen der Grandidone A, 7-Epi-A, B, 7-Epi-B, C, D und 7-Epi-D

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2227, doi. 10.1002/hlca.19810640729

By:

Uchida, Masaaki;
Miyase, Toshio;
Yoshizaki, Fumihiko;
Bieri, Jost H.;
Rüedi, Peter;
Eugster, Conrad Hans

Publication type:

Article

The Electrochemical Measurement of Rate Constants for the Catalyzed Oxidation and Reduction of Water in microheterogeneous systems.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2148, doi. 10.1002/hlca.19810640720

By:

Sutcliff, Emile;
Neumann-Spallart, Michael

Publication type:

Article

Beiträge zur Kenntnis des chromophoren Systems der Corrine: XII [1]. Chemische Eigenschaften des Reaktionsproduktes aus Dicyanocobyrinsäure-heptamethylester mit hypochloriger Säure.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2257, doi. 10.1002/hlca.19810640731

By:

Sauer, Ernst Michael;
Broschinski, Klaus;
Ernst, Ludger;
Inhoffen, Hans Herloff

Publication type:

Article

A Study of N-Butyl-(all- trans-retinylidene)amine and Its Protonated Species by 1H- and 13C-NMR. Spectroscopy.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 1969, doi. 10.1002/hlca.19810640702

By:

Pattaroni, Christian;
Lauterwein, Jürgen

Publication type:

Article

Reaktivität und Elektronenstruktur porphinoider Nickelkomplexe.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2361, doi. 10.1002/hlca.19810640742

By:

Meier, Kurt;
Scheffold, Rolf;
Calzaferri, Gion

Publication type:

Article

Synthesis and Biological Properties of Enkephalin-like Peptides Containing Adamantylalanine in Position 4 and 5.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 7, p. 2084, doi. 10.1002/hlca.19810640713

By:

Do, Kim Quang;
Schwyzer, Robert

Publication type:

Article