Works matching IS 0018019X AND DT 1974 AND VI 57 AND IP 6

Results: 46

Structure of a Tricyclic Photoproduct C15H24O3 by X-Ray Analysis.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1846, doi. 10.1002/hlca.19740570632

By:

Bernardinelli, Gérald;
Gerdil, Raymond

Publication type:

Article

The Electronic Spectra of Unsubstituted Mono- to Pentaacetylene in the Gas Phase and in Solution in the Range 1100 to 4000 Å.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1731, doi. 10.1002/hlca.19740570625

By:

Kloster-Jensen, Else;
Haink, Hans-Jochen;
Christen, Heinz

Publication type:

Article

Vinca Alkaloids XXXIII [1]. Microbiological Conversions of Vincaleukoblastine (VLB, Vinblastine), an Antitumor Alkaloid from Vinca rosea. L INN.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1886, doi. 10.1002/hlca.19740570643

By:

Neuss, N.;
Mallett, G. E.;
Brannon, D. R.;
Mabe, J. A.;
Horton, H. R.;
Huckstep, L. L.

Publication type:

Article

Mitteilungen.

Published in:: Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1894, doi. 10.1002/hlca.19740570646
Publication type:: Article

Über Reaktionen oxygenierter Kobalt(II)-Chelate. II. Konfigurationsisomere Oxygenierungsprodukte von Tetraäthylenpentaminkobalt(II).

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1493, doi. 10.1002/hlca.19740570603

By:

Zehnder, Margareta;
Fallab, Silvio

Publication type:

Article

Carotinoid-Glycoside. 1. Mitteilung. Partialsynthese und Charakterisierung von Zeaxanthin Mono- und Diglucosid.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1641, doi. 10.1002/hlca.19740570617

By:

Pfander, Hanspeter;
Hodler, Martin

Publication type:

Article

Thermische Umlagerung von Propargyloxy-cycloheptatrien-Derivaten.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1598, doi. 10.1002/hlca.19740570614

By:

Pryde, Andrew;
Zsindely, Janos;
Schmid, Hans

Publication type:

Article

Photoaddition of Oxa-enones to 2-Chlorodifluoromethyl-3-chloro-3,3-difluoro-propene.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1866, doi. 10.1002/hlca.19740570636

By:

Margaretha, Paul

Publication type:

Article

Automerisierung von 1,3,5,5-Tetramethylcyclohexa-1,3-dien. Vorläufige Mitteilung.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1872, doi. 10.1002/hlca.19740570639

By:

Baumann, Bruno C.;
Dreiding, André S.

Publication type:

Article

The Conjugative Interaction between π-Orbitals and Cyclobutane-Orbitals in Spiro[3.4]octa-5,7-diene and Spiro[3.4]octene-5.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1519, doi. 10.1002/hlca.19740570607

By:

Bischof, Peter;
Gleiter, Rolf;
De Meijere, Armin;
Meyer, Lüder-Ulrich

Publication type:

Article

Über Pterinchemie. 49. Mitteilung. Eine neue Synthese von 5-Formyl-6, 7-dimethyl-5,6,7,8-tetrahydropterin und 5,6,7-Trimethyl-5,6,7,8-tetrahydropterin.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1651, doi. 10.1002/hlca.19740570618

By:

Bieri, Jost H.;
Viscontini, Max

Publication type:

Article

Biosynthese der Cytochalasane. Teil II Die Grundbausteine von Cytochalasin D.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1785, doi. 10.1002/hlca.19740570629

By:

Lebet, Claude-René;
Tamm, Christoph

Publication type:

Article

Grignard-Addition an Pyridin-N-oxid.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1676, doi. 10.1002/hlca.19740570620

By:

Schiess, Peter;
Monnier, Charles;
Ringele, Peter;
Sendi, Ebrahim

Publication type:

Article

Spezifisch π→π*-induzierte Reaktionen von γ-Dimethoxymethylcyclohexen-2-onen: 1,3-Umlagerung und Wasserstoffabstraktion durch das α-Kohlenstoffatom.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1815, doi. 10.1002/hlca.19740570631

By:

Gloor, Jean;
Schaffner, Kurt

Publication type:

Article

Über Pterinchemie. 48. Mitteilung. Zur Herstellung und analytischen Charakterisierung reiner, hydrierter Pterine.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1485, doi. 10.1002/hlca.19740570602

By:

Weber, Rudolf;
Frick, Willi;
Viscontini, Max

Publication type:

Article

Silberioneninduzierte Reaktion von 3-Chlor-2-pyrrolidinocyclohexen mit 1,3-Dienen. Vorläufige Mitteilung.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1883, doi. 10.1002/hlca.19740570642

By:

Schmid, Rudolf;
Schmid, Hans

Publication type:

Article

Reaktionen von Glutaminsäuredimethylester im Massenspektrometer. 21. Mitteilung über das massenspektrometrische Verhalten von Stickstoffverbindungen.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1584, doi. 10.1002/hlca.19740570613

By:

Lerch, Elsbeth;
Hesse, Manfred

Publication type:

Article

Limitations of Affinity Chromatography: Solvolytic Detachment of Ligands from Polymeric Supports.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1718, doi. 10.1002/hlca.19740570624

By:

Tesser, Godefridus Ignatius;
Fisch, Hans-Ulrich;
Schwyzer, Robert

Publication type:

Article

Synthesis and Structure of Tris (2′-[2-phenyl-1,3-dioxolano])-chromium(III).

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1863, doi. 10.1002/hlca.19740570635

By:

Daly, John J.;
Sanz, Francisco;
Sneeden, Raymond P. A.;
Zeiss, Harold H.

Publication type:

Article

Der massenspektrometrische Zerfall von Tetralin-Derivaten Beitrag zur massenspektrometrischen Retro- Diels-Alder Reaktion.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1510, doi. 10.1002/hlca.19740570606

By:

Heimgartner, Heinz;
Weibel, Peter A.;
Hesse, Manfred

Publication type:

Article

Isolierung, Konstitution und Synthese der ( R)-(−)-Eucominsäure.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1766, doi. 10.1002/hlca.19740570628

By:

Heller, Werner;
Tamm, Christoph

Publication type:

Article

Biosynthesis of the Cytochalasans. Part III. 13C-NMR. of cytochalasin B (phomin) and cytochalasin D. Incorporation of [1-13C]- and [2-13C]-sodium acetate.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1801, doi. 10.1002/hlca.19740570630

By:

Graf, Werner;
Robert, Jean-Louis;
Vederas, John C.;
Tamm, Christoph;
Solomon, Philippa H.;
Miura, Iwao;
Nakanishi, Koji

Publication type:

Article

1-Fluoro-benzocyclopropenium Ion from 1,1-difluoro-benzocyclopropene.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1881, doi. 10.1002/hlca.19740570641

By:

Burger, Ulrich;
Müller, Paul;
Zuidema, Laura

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1974, v. 57, n. 6, p. fmi, doi. 10.1002/hlca.19740570601
Publication type:: Article

Hormone-Receptor Interactions. Synthesis of a biologically active cysteinyl-angiotensin derivative and its use for the preparation of spin-labelled and polymer-supported molecules.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1576, doi. 10.1002/hlca.19740570612

By:

Möschler, Hans Jörg;
Schwyzer, Robert

Publication type:

Article

Etude de la réactivité de la fonction carbonyle avec le cétène en présence d'un alcoxyde de titane. 2e communication. A propos de l'interprétation de quelques spectres RMN de β-hydroxyesters formés.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1713, doi. 10.1002/hlca.19740570623

By:

Vuitel, Laurent;
Tabacchi, Raffaele;
Jacot-Guillarmod, André

Publication type:

Article

A Thermodynamic and Kinetic Study on the Stability of the Conformational States of N-Acetyl-proline-methylamide by IR. spectroscopy and chemical relaxation.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1859, doi. 10.1002/hlca.19740570634

By:

Hopmann, Rudolf

Publication type:

Article

Utilisation d'ylides du phosphore en chimie des sucres. XX. Synthèse de sucres acétyléniques et réarrangment d'intermédiaires carbénoïdes. Communication préliminaire.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1505, doi. 10.1002/hlca.19740570605

By:

Tronchet, Jean M. J.;
Gonzalez, Alberto;
Zumwald, Jean-Bernard;
Perret, Françoise

Publication type:

Article

Zur Identifikation potentieller Metabolite von Cannabis-Inhaltstoffen: Kernresonanz- und massenspektroskopische Untersuchungen an seitenkettenhydroxylierten Cannabinoiden.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1626, doi. 10.1002/hlca.19740570616

By:

Binder, Michael;
Agurell, Stig;
Leander, Kurt;
Lindgren, Jan-Erik

Publication type:

Article

Erratum.

Published in:: Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1893, doi. 10.1002/hlca.19740570645
Publication type:: Article

Etude par résonance paramagnétique électronique du radical (ΦNH)2P• piégé dans un monocristal de diphenylamino-phosphineoxyde irradié aux rayons X.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1761, doi. 10.1002/hlca.19740570627

By:

Ginet, Lucien;
Geoffroy, Michel

Publication type:

Article

Zum Mechanismus der Imidazol-Katalyse der Cyclo-trimerisation und cis-trans Umlagerung von Maleinsäure-Derivaten.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1871, doi. 10.1002/hlca.19740570638

By:

Wagner-Jauregg, Th.;
Ahmed, Q.

Publication type:

Article

Substituent Increments for the 1H-NMR. Chemical Shifts of the 18- and 19-Methyl Protons of Steroids. Part I: 9β, 10α( Retro)-Steroids.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1549, doi. 10.1002/hlca.19740570609

By:

Englert, Gerhard;
Arnold, Wolf;
Els, Hans;
Fürst, Andor;
Meier, Arthur;
Meister, Walter

Publication type:

Article

Tetrahalo- anti-bis-homoduroquinones by addition of dihalocarbenes to duroquinone.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1876, doi. 10.1002/hlca.19740570640

By:

Chapleo, Christopher B.;
Dahl, Charles E.;
Dreiding, André S.;
Grieb, Rita;
Niggli, Alfred

Publication type:

Article

Selektive Synthesen mit Organometallen I. Konfigurativ einheitliche Folgeprodukte aus Alkenylkalium-Zwischenstufen.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1567, doi. 10.1002/hlca.19740570611

By:

Schlosser, Manfred;
Hartmann, Jürgen;
David, Victor

Publication type:

Article

Etude de la réactivité de la fonction carbonyle avec le cétène en présence d'un alcoxyde de titane. 1ère communication. Nouvelle méthode de synthèse de β-hydroxyesters.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1703, doi. 10.1002/hlca.19740570622

By:

Vuitel, Laurent;
Jacot-Guillarmod, André

Publication type:

Article

Photochemische Reaktionen. 78. Mitteilung. Anwendung der π → π*-induzierten Cyclisierung von α,β-ungesättigten γ-Dimethoxymethylketonen auf 19-Methoxy- bzw. 19-Dimethoxy-Steroid-enone und -dienone.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1851, doi. 10.1002/hlca.19740570633

By:

Karvaš, Milan;
Marti, Franz;
Wehrli, Hansuli;
Schaffner, Kurt;
Jeger, Oskar

Publication type:

Article

Synthese von 1,6-Trimethylen-3-methoxycarbonyl-4-methyl-2-pyridon.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1498, doi. 10.1002/hlca.19740570604

By:

Fuhrer, Walter;
Hobi, Reinhard;
Pfaltz, Andreas;
Schneider, Peter

Publication type:

Article

Vinca alkaloids XXXIV. Preparation of des-Na-methyl-vindoline by microbiological conversion of vindoline, a major alkaloid from Vinca rosea L.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1891, doi. 10.1002/hlca.19740570644

By:

Neuss, Norbert;
Fukuda, D. S.;
Brannon, D. R.;
Huckstep, L. L.

Publication type:

Article

Cycloadditionen von Heterocumulenen an CN-Bindungssysteme. 3. Mitteilung. Bildung von Dihydro-1,3,5-oxadiazin- und Perhydro- s-triazinthionen bei der Reaktion von Iminodithiocarbonaten und Azomethinen mit Aroylisothiocyanaten.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1614, doi. 10.1002/hlca.19740570615

By:

Milzner, Karlheinz;
Seckinger, Karl

Publication type:

Article

Einsatz von Hochleistungs-Trennkapillaren in der GC.-EIMS./GC.-CIMS.-Analyse: Eine Möglichkeit zur massenspektrometrischen Doppelbindungscharakterisierung in komplexen Monoalkengemischen.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1744, doi. 10.1002/hlca.19740570626

By:

Blum, Wolfgang;
Richter, Wilhelm J.

Publication type:

Article

A Short Stereoselective Total Synthesis of Racemic Patchouli Alcohol. Preliminary communication.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1868, doi. 10.1002/hlca.19740570637

By:

Näf, Ferdinand;
Ohloff, Günther

Publication type:

Article

Formation and Properties of Losod, a New Sodium Zeolite.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1533, doi. 10.1002/hlca.19740570608

By:

Sieber, Werner;
Meier, Walter M.

Publication type:

Article

Arbeiten über Phosphorsäure- und Thiophosphorsäureester mit einem heterocyclischen Substituenten. 8. Mitteilung. Das Stäubli-Verfahren, eine Eintopf-Kondensation von Thiophosphorverbindungen (.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1658, doi. 10.1002/hlca.19740570619

By:

Rüfenacht, Kurt

Publication type:

Article

Substituent Increments for the 1H-NMR. Chemical Shifts of the 18- and 19-Methyl Protons of Steroids. Part II: 9α,10β(normal)-steroids.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1559, doi. 10.1002/hlca.19740570610

By:

Arnold, Wolf;
Meister, Walter;
Englert, Gerhard

Publication type:

Article

8-Oxabicyclo[5.1.0]octa-2,4-dien Thermische und lichtinduzierte Isomerisierung.

Published in:

Helvetica Chimica Acta, 1974, v. 57, n. 6, p. 1692, doi. 10.1002/hlca.19740570621

By:

Schiess, Peter;
Wisson, Markus

Publication type:

Article