Works matching IS 0018019X AND DT 1975 AND VI 58 AND IP 6

Results: 44

Walter Feitknecht.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. i, doi. 10.1002/hlca.19750580602

By:

Schindler, Paul

Publication type:

Article

Total Synthesis of Indole and Dihydroindole Alkaloids. VI. The total synthesis of some monomeric vinca alkaloids: dl-Vincadine, dl-vincaminoreine, dl-vincaminorine, dl-vincadifformine, dl-minovine and dl-vincaminoridine.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1648, doi. 10.1002/hlca.19750580620

By:

Kutney, James P.;
Chan, Ka Kong;
Failli, Amedeo;
Fromson, John M.;
Gletsos, Constantine;
Leutwiler, Albert;
Nelson, Vern R.;
de Souza, Joao Pedro

Publication type:

Article

Low Temperature Photochemistry of the Acetone/2-Propanol System.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1598, doi. 10.1002/hlca.19750580613

By:

Henne, Andreas;
Fischer, Hanns

Publication type:

Article

Über Pterinchemie 53. Mitteilung 1. Zur Konformation von 6-Methyl- und 5,6-Dimethyl-5,6,7,8-terahydropterin in wässeriger Lösung.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1772, doi. 10.1002/hlca.19750580630

By:

Weber, Rudolf;
Viscontini, Max

Publication type:

Article

Regiospecific Intramolecular Aldol Condensation Induced by Conjugate Addition of lithium dimethylcuprate to ζ-Oxo-α, β-enones preliminary communication [1].

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1808, doi. 10.1002/hlca.19750580635

By:

Näf, Ferdinand;
Decorzant, René;
Thommen, Walter

Publication type:

Article

Die stereospezifische Reduktion von (1 R)-3- endo-Aminocampher zu (1 R)-3- endo-Aminoborneol.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1781, doi. 10.1002/hlca.19750580631

By:

Pauling, Horst

Publication type:

Article

Erratum.

Published in:: Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1865, doi. 10.1002/hlca.19750580642
Publication type:: Article

Einführung der Corticoid-Seitenkette bei Wortmannin.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1629, doi. 10.1002/hlca.19750580617

By:

Haefliger, Walter;
Hauser, Daniel

Publication type:

Article

Photoinduzierte Reaktionen von 3-Phenyl-2 H-azirinen mit Carbonsäureestern 40. Mitteilung über Photoreaktionen.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1739, doi. 10.1002/hlca.19750580628

By:

Gilgen, Paul;
Hansen, Hans-Jürgen;
Heimgartner, Heinz;
Sieber, Willi;
Uebelhart, Peter;
Schmid, Hans;
Schönholzer, Peter;
Oberhänsli, Willi E.

Publication type:

Article

Synthese und HOFMANN-Abbau des 1-(Diphenyl-hydroxymethyl)-2,2-dimethyl-6,7-dimethoxy-1,2,3,4-tetrahydroisochinolinium-Ions.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1825, doi. 10.1002/hlca.19750580639

By:

Wiegrebe, Wolfgang;
Rohrbach-Munz, Barbara;
Awe, Walter;
Kirk, Olaf

Publication type:

Article

Absolute Konfiguration von Azafrin.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1722, doi. 10.1002/hlca.19750580624

By:

Eschenmoser, Walter;
Hans Eugster, Conrad

Publication type:

Article

Preparation of Neutral Ionophores for Alkali and Alkaline Earth Metal Cations and their application in ion selective membrane electrodes.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1535, doi. 10.1002/hlca.19750580605

By:

Ammann, Daniel;
Bissig, René;
Güggi, Marc;
Pretsch, Ernö;
Simon, Wilhelm;
Borowitz, Irving J.;
Weiss, Louis

Publication type:

Article

Comments on the Interpretation of NMR. Parameters in some platinum-olefin complexes.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1548, doi. 10.1002/hlca.19750580606

By:

Pregosin, Paul S.;
Venanzi, L. M.

Publication type:

Article

Weitreichende Kernspin-Kopplungen in 2-Fluorbenzamiden II. [15N]-2-Fluorbenzamid.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1822, doi. 10.1002/hlca.19750580638

By:

Fritz, Hans;
Winkler, Tammo;
Küng, Werner

Publication type:

Article

Hormone-Receptor Interactions. Demonstration of Two Message Sequences (Active Sites) in α-Melanotropin.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1528, doi. 10.1002/hlca.19750580604

By:

Eberle, Alex;
Schwyzer, Robert

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1975, v. 58, n. 6, p. fmi, doi. 10.1002/hlca.19750580601
Publication type:: Article

Selektive Funktionalisierung von Wortmannin mit Hilfe einer Furanring-Maskierung.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1620, doi. 10.1002/hlca.19750580616

By:

Haefliger, Walter;
Kis, Zoltan;
Hauser, Daniel

Publication type:

Article

Synthesis of Heparin Saccharides IV. Synthesis of disaccharides possessing the structure of a repeating unit of heparin.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1847, doi. 10.1002/hlca.19750580641

By:

Wyss, Pierre C.;
Kiss, Joseph;
Arnold, Wolf

Publication type:

Article

Bei der Redaktion eingelaufene Bücher.

Published in:: Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1865, doi. 10.1002/hlca.19750580644
Publication type:: Article

The He 584 Å Photoelectron Spectra of Analoga of Thiathiophthene.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1591, doi. 10.1002/hlca.19750580612

By:

Gleiter, Rolf;
Gygax, Ruedi;
Reid, David H.

Publication type:

Article

Darstellung und Charakterisierung von (±)-Coralydin und (±)-O-Methylcorytenchirin und ihrer optischen Antipoden (Vorläufige Mitteilung).

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1719, doi. 10.1002/hlca.19750580623

By:

Bruderer, Hans;
Metzger, Jean;
Brossi, Arnold

Publication type:

Article

Totalsynthese von Betalainen.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1805, doi. 10.1002/hlca.19750580634

By:

Hermann, Kurt;
Dreiding, André S.

Publication type:

Article

13C-NMR. Spectroscopy of Naturally Occurring Substances. XXXII. Vincaleucoblastine and related alkaloids.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1560, doi. 10.1002/hlca.19750580608

By:

Wenkert, Ernest;
Hagaman, Edward W.;
Lal, Bansi;
Gutowski, Gerald E.;
Katner, Allen S.;
Miller, Jean C.;
Neuss, Norbert

Publication type:

Article

Ionisation Energies and the Electronic Structures of the N-oxides of Azanaphthalenes and azaanthracenes.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1641, doi. 10.1002/hlca.19750580619

By:

Maier, John P.;
Muller, Jean-François;
Kubota, Tanekazu;
Yamakawa, Masumi

Publication type:

Article

Dérivés C-glycosyliques XXVI. Nouvelles voies d'accès à des C-nucléosides isoxazoliques et thiophéniques Communication préliminaire.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1735, doi. 10.1002/hlca.19750580627

By:

Tronchet, Jean M. J.;
Martin, Olivier;
Zumwald, Jean-Bernard;
Le-Hong, Nghiep;
Perret, Françoise

Publication type:

Article

13C-Kernresonanzspektroskopische Untersuchung der Komplexierung von synthetischen «Carrier»-Molekeln mit Ca2+-Ionen.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1573, doi. 10.1002/hlca.19750580610

By:

Büchi, Rolf;
Pretsch, Ernö

Publication type:

Article

13C-NMR. Spectroscopy of Naturally Occurring Substances. XXXV. Labdanic diterpenes.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1567, doi. 10.1002/hlca.19750580609

By:

Buckwalter, Brian L.;
Burfitt, Ivor R.;
Nagel, Arthur A.;
Wenkert, Ernest;
Näf, Ferdinand

Publication type:

Article

Synthesis of Heparin Saccharides III. Synthesis of Derivatives of D-Glucosamine as Starting Materials for Disaccharides.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1833, doi. 10.1002/hlca.19750580640

By:

Wyss, Pierre C.;
Kiss, Joseph

Publication type:

Article

Carotinoidsynthesen über Sulfone; Synthese von β-Carotin.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1584, doi. 10.1002/hlca.19750580611

By:

Fischli, Albert;
Mayer, Hans

Publication type:

Article

Total Synthesis of Indole and Dihydroindole Alkaloids. VIII. Studies on the synthesis of bisindole alkaloids in the vinblastine-vincristine series. The chloroindolenine approach.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1690, doi. 10.1002/hlca.19750580622

By:

Kutney, James P.;
Beck, John;
Bylsma, Feike;
Cook, James;
Cretney, Walter J.;
Fuji, Kaoru;
Imhof, René;
Treasurywala, Adi M.

Publication type:

Article

Les pseudonitrosites en chimie organosilicique.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1801, doi. 10.1002/hlca.19750580633

By:

Jolibois, Henri;
Doucet, André;
Perrot, Roger

Publication type:

Article

Total Synthesis of Indole and Dihydroindole Alkaloids. VII. The total synthesis of isovelbanamine, velbanamine, cleavamine, 18β-carbomethoxycleavamine and catharanthine.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1672, doi. 10.1002/hlca.19750580621

By:

Kutney, James P.;
Bylsma, Feike

Publication type:

Article

Carotinoid-Glykoside 2. Mitteilung Untersuchungen zur Carotinoid-Zusammensetzung im Safran.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1608, doi. 10.1002/hlca.19750580615

By:

Pfander, Hanspeter;
Wittwer, Fritz

Publication type:

Article

Komplexe von Kupfer(I) mit Glyoxal-bis-N- t.-butylimin.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1732, doi. 10.1002/hlca.19750580626

By:

Ayranci, Halim;
Daul, Claude;
Zobrist, Markus;
von Zelewsky, Alex

Publication type:

Article

Synthèse de spiro-pyrazolines par cycloaddition du diazométhane sur des sucres insaturés ramifiés. Influence de l'isomérie géométrique sur l'orientation de la réaction Communication préliminaire

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1817, doi. 10.1002/hlca.19750580637

By:

Tronchet, Jean M. J.;
Gentile, Bernard;
Tronchet, Jeannine

Publication type:

Article

Ylides du soufre dérivés de sucres Communication préliminaire.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1799, doi. 10.1002/hlca.19750580632

By:

Tronchet, Jean M. J.;
Eder, Hansjörg

Publication type:

Article

Arbeiten über Phosphorsäure und Thiophosphorsäureester mit einem heterocyclischen Substituenten 9. Mitteilung 1. Aza-Analogie I: Aza-Analoge von Phthalimid-, Benztriazol- und 1,2,3-Benztriazin-4(3 H)-on-Derivaten.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1521, doi. 10.1002/hlca.19750580603

By:

Rüfenacht, Kurt

Publication type:

Article

Mitteilungen-Communications.

Published in:: Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1865, doi. 10.1002/hlca.19750580643
Publication type:: Article

A chemical study of burley tobacco flavour ( nicotiana tabacum L.) VI. Identification and Synthesis of Four Irregular Terpenoids Related to Solanone, Including a 'Prenylsolanone'.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1602, doi. 10.1002/hlca.19750580614

By:

Demole, Edouard;
Enggist, Paul

Publication type:

Article

Steroide und Sexualhormone 256. Mitteilung 1. Quassinoide Bitterstoffe I 1-Oxo-2-methoxy-4α-methyl-17β-hydroxy-Δ2-5α-androsten als Modell für den Ring A des Quassins.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1727, doi. 10.1002/hlca.19750580625

By:

Jörg Koch, Hans;
Pfenninger, Hans;
Graf, Walter

Publication type:

Article

Triasteranetrione from Triasteranedione.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1813, doi. 10.1002/hlca.19750580636

By:

Chapleo, Christopher B.;
McDonald, Ian A.;
Dreiding, André S.

Publication type:

Article

Piperaceae Alkaloids: Part I. Structure of piperstachine; 13C- and 1H-NMR. Studies.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1551, doi. 10.1002/hlca.19750580607

By:

Joshi, Balawant S.;
Viswanathan, Narayanan;
Gawad, Dilip H.;
von Philipsborn, Wolfgang

Publication type:

Article

Ionisation Energies and the Electronic Structures of the N-oxides of diazabenzenes.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1634, doi. 10.1002/hlca.19750580618

By:

Maier, John P.;
Muller, Jean-François;
Kubota, Tanekazu

Publication type:

Article

An Efficient Photosensitizer: O-Ethyl-1-thionaphthoate.

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 6, p. 1768, doi. 10.1002/hlca.19750580629

By:

Gisin, Markus;
Wirz, Jakob

Publication type:

Article