Works matching IS 0018019X AND DT 1974 AND VI 57 AND IP 2

Results: 28

Stereoelectronic Properties of Tetrahedral Species derived from Carbonyl Groups. Ab initio study of the hydroxymethanes.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 493, doi. 10.1002/hlca.19740570225
By:
- Lehn, Jean-Marie;
- Wipff, Georges;
- Bürgi, Hans-Beat
Publication type:
Article
Steroids and Sex Hormones. Part 250. Transformation of dehydroabietic acid into 14-methyl-steroids II. The synthesis of 3-oxo-17β-acetoxy-14α-methyl-δ4-8α, 9β, 10α, 13α-estrene. Preliminary communication
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 368, doi. 10.1002/hlca.19740570210
By:
- Wirthlin, Toni;
- Wehrli, Hansuli;
- Jeger, Oskar
Publication type:
Article
Quadricyclanes. Part II: Electronic structure and chemical reactivity.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 472, doi. 10.1002/hlca.19740570221
By:
- Haselbach, Edwin;
- Martin, Hans-Dieter
Publication type:
Article
Transition Metal Ions and Amides, VI. Complexation of the neutral and the anionic forms of 3, 7-diazanonanedioic acid diamide and 3, 7-diazanonanedioic acid diethylamide with Cu2+ and Ni2+.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 286, doi. 10.1002/hlca.19740570203
By:
- Kaden, Thomas A.;
- Zuberbühler, Andreas D.
Publication type:
Article
Dediazoniations of Arene Diazonium Ions in Homogenous Solution. Part IV: Change-over from a heterolytic to a homolytic mechanism in 2,2,2-trifluoroethanol pyridine mixtures.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 395, doi. 10.1002/hlca.19740570214
By:
- Burri, Peter;
- Loewenschuss, Hana;
- Zollinger, Heinrich;
- Zwolinski, Gene K.
Publication type:
Article
Etude de la fragmentation des alkyl-thiazoles en spectrographie de masse.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 324, doi. 10.1002/hlca.19740570207
By:
- Tabacchi, Raffaele
Publication type:
Article
Reaktionskinetische Untersuchungen der Hydratisierung von Acetylen zu Acetaldehyd an Molekularsieben, die mit katalytisch wirksamen Metall-Ionen beladen sind.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 441, doi. 10.1002/hlca.19740570218
By:
- Gut, Günther;
- Aufdereggen, Klaus
Publication type:
Article
Quadricyclanes. Part I: Photoelectron spectra and electronic structure.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 465, doi. 10.1002/hlca.19740570220
By:
- Martin, Hans-Dieter;
- Heller, Constanze;
- Haselbach, Edwin;
- Lanyjova, Zuzana
Publication type:
Article
Intramolekulare Additionen α-lithiierter Amide; eine neue Synthese von 2-Aryl- und 2-Vinylindolen.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 281, doi. 10.1002/hlca.19740570202
By:
- Greuter, Hans;
- Schmid, Hans
Publication type:
Article
Participation of Non-Conjugated Double Bonds in Diels-Alder Reactions. A kinetic study of the addition of tropone to norbornens.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 383, doi. 10.1002/hlca.19740570213
By:
- Pfaendler, H. R.;
- Tanida, Hiroshi;
- Haselbach, Edwin
Publication type:
Article
The Crystal and Molecular Structure of 1-Methyl-1-Thionia-Cyclohexane Iodide.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 489, doi. 10.1002/hlca.19740570224
By:
- Gerdil, Raymond
Publication type:
Article
Die Hysterese der Adsorptions- und Desorptionsisothermen an porösen Silicagelen und Aluminiumoxiden.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 314, doi. 10.1002/hlca.19740570206
By:
- Kohlschütter, Hans Wolfgang;
- Lüscher, Madeleine;
- Signer, Rudolf
Publication type:
Article
Synthese des (±)-Oncinotins.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 434, doi. 10.1002/hlca.19740570217
By:
- Schneider, Fernand;
- Bernauer, Karl;
- Guggisberg, Armin;
- Van DenBroek, Peter;
- Hesse, Manfred;
- Schmid, Hans
Publication type:
Article
Mitteilung.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 511, doi. 10.1002/hlca.19740570228
Publication type:
Article
Masthead.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. fmi, doi. 10.1002/hlca.19740570201
Publication type:
Article
Photochemie von Benzisoxazolen. (vorläufige Mitteilung).
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 376, doi. 10.1002/hlca.19740570212
By:
- Heinzelmann, W.;
- Märky, M.
Publication type:
Article
5-(1-Alkenyl)-1, 3, 4-oxadiazol-2(3 H)-one.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 487, doi. 10.1002/hlca.19740570223
By:
- Rüfenacht, Kurt
Publication type:
Article
Umlagerung von Prolinol-Derivaten. 2. Mitteilung. N-Alkoxycarbonyl-prolinylester.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 301, doi. 10.1002/hlca.19740570205
By:
- Wiegrebe, Wolfgang;
- Herrmann, Ernst-georg;
- Schlunegger, Urs Peter;
- Budzikiewicz, Herbert
Publication type:
Article
Über die Struktur der makrocyclischen Spermidin-Alkaloide Oncinotin, Neooncinotin und Isooncinotin. 151. Mitteilung über Alkaloide.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 414, doi. 10.1002/hlca.19740570216
By:
- Guggisberg, A.;
- Badawi, M. M.;
- Hesse, M.;
- Schmid, H.
Publication type:
Article
Polar Substituent Effects on Rates and Equilibria of 4-Substituted Quinuclidines. Preliminary communication.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 509, doi. 10.1002/hlca.19740570227
By:
- Grob, Cyril A.;
- Schlageter, Markus G.
Publication type:
Article
Steroide und Sexualhormone. 249. Mitteilung [1]. Zur Umwandlung von Dehydroabietinsäure in 14α-Methylsteroide I Die Partialsynthese von 5-Methoxy-17-oxo-14α-methyl-Δ5, 7, 9-des-A-östratrien.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 351, doi. 10.1002/hlca.19740570209
By:
- Wirthlin, Toni;
- Wehrli, Hansuli;
- Jeger, Oskar
Publication type:
Article
The Crystal and Molecular Structure of 3-Oxo-17β-acetoxy-Δ4-14α-methyl-8α, 9β, 10α, 13α-estrene.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 370, doi. 10.1002/hlca.19740570211
By:
- Koyama, Gunji
Publication type:
Article
Contribution à la phytochimie du genre Gentiana, VI. Etude des xanthones dans les feuilles de Gentiana bavarica L.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 294, doi. 10.1002/hlca.19740570204
By:
- Hostettmann, Kurt;
- Tabacchi, Rafaël;
- Jacot-Guillarmod, André
Publication type:
Article
Synthesis of [2- p-Fluorophenylalanine]oxytocin and its Desamino Analogue Using the S-Acetamidomethyl Protecting Group.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 403, doi. 10.1002/hlca.19740570215
By:
- Marbach, Peter;
- Rudinger, Josef
Publication type:
Article
The Reaction of some Carbonyl and Thiocarbonyl Compounds with Prenyl- and Crotyllithium in Tetrahydrofuran Solution.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 496, doi. 10.1002/hlca.19740570226
By:
- Rautenstrauch, V.
Publication type:
Article
Preparation of Diazo Phenyl Sulfides. Kinetics and Mechanism of the Diazo Coupling Reaction of p-Nitrobenzenediazo Phenyl Sulfide with β-Naphthol under Various Conditions.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 481, doi. 10.1002/hlca.19740570222
By:
- Sakla, Alfy Badie;
- Masoud, Nabil Khalil;
- Sawiris, Zaki;
- Ebaid, Wagih Sadik
Publication type:
Article
Hyperfine Shifts of the 13C-NMR. in Protoporphyrin IX Iron (III) Dicyanide and Deuteroporphyrin IX Iron (III) Dicyanide.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 336, doi. 10.1002/hlca.19740570208
By:
- Wüthrich, Kurt;
- Baumann, Rudolf
Publication type:
Article
Nachbargruppeneffekte bei der massenspektrometrischen Fragmentierung: N-Acetyl-ω-Phenylalkylamine. 20. Mitteilung über das massenspektrometrische verhalten von stickstoffverbindung.
Published in:
Helvetica Chimica Acta, 1974, v. 57, n. 2, p. 452, doi. 10.1002/hlca.19740570219
By:
- Wild, René;
- Hesse, Manfred
Publication type:
Article

Works matching IS 0018019X AND DT 1974 AND VI 57 AND IP 2

Stereoelectronic Properties of Tetrahedral Species derived from Carbonyl Groups. Ab initio study of the hydroxymethanes.

Steroids and Sex Hormones. Part 250. Transformation of dehydroabietic acid into 14-methyl-steroids II. The synthesis of 3-oxo-17β-acetoxy-14α-methyl-δ<sup>4</sup>-8α, 9β, 10α, 13α-estrene. Preliminary communication

Quadricyclanes. Part II: Electronic structure and chemical reactivity.

Transition Metal Ions and Amides, VI. Complexation of the neutral and the anionic forms of 3, 7-diazanonanedioic acid diamide and 3, 7-diazanonanedioic acid diethylamide with Cu<sup>2+</sup> and Ni<sup>2+</sup>.

Dediazoniations of Arene Diazonium Ions in Homogenous Solution. Part IV: Change-over from a heterolytic to a homolytic mechanism in 2,2,2-trifluoroethanol pyridine mixtures.

Etude de la fragmentation des alkyl-thiazoles en spectrographie de masse.

Reaktionskinetische Untersuchungen der Hydratisierung von Acetylen zu Acetaldehyd an Molekularsieben, die mit katalytisch wirksamen Metall-Ionen beladen sind.

Quadricyclanes. Part I: Photoelectron spectra and electronic structure.

Intramolekulare Additionen α-lithiierter Amide; eine neue Synthese von 2-Aryl- und 2-Vinylindolen.

Participation of Non-Conjugated Double Bonds in Diels-Alder Reactions. A kinetic study of the addition of tropone to norbornens.

The Crystal and Molecular Structure of 1-Methyl-1-Thionia-Cyclohexane Iodide.

Die Hysterese der Adsorptions- und Desorptionsisothermen an porösen Silicagelen und Aluminiumoxiden.

Synthese des (±)-Oncinotins.

Mitteilung.

Masthead.

Photochemie von Benzisoxazolen. (vorläufige Mitteilung).

5-(1-Alkenyl)-1, 3, 4-oxadiazol-2(3 H)-one.

Umlagerung von Prolinol-Derivaten. 2. Mitteilung. N-Alkoxycarbonyl-prolinylester.

Über die Struktur der makrocyclischen Spermidin-Alkaloide Oncinotin, Neooncinotin und Isooncinotin. 151. Mitteilung über Alkaloide.

Polar Substituent Effects on Rates and Equilibria of 4-Substituted Quinuclidines. Preliminary communication.

Steroide und Sexualhormone. 249. Mitteilung [1]. Zur Umwandlung von Dehydroabietinsäure in 14α-Methylsteroide I Die Partialsynthese von 5-Methoxy-17-oxo-14α-methyl-Δ<sup>5, 7, 9</sup>-des-A-östratrien.

The Crystal and Molecular Structure of 3-Oxo-17β-acetoxy-Δ<sup>4</sup>-14α-methyl-8α, 9β, 10α, 13α-estrene.

Contribution à la phytochimie du genre Gentiana, VI. Etude des xanthones dans les feuilles de Gentiana bavarica L.

Synthesis of [2- p-Fluorophenylalanine]oxytocin and its Desamino Analogue Using the S-Acetamidomethyl Protecting Group.

The Reaction of some Carbonyl and Thiocarbonyl Compounds with Prenyl- and Crotyllithium in Tetrahydrofuran Solution.

Preparation of Diazo Phenyl Sulfides. Kinetics and Mechanism of the Diazo Coupling Reaction of p-Nitrobenzenediazo Phenyl Sulfide with β-Naphthol under Various Conditions.

Hyperfine Shifts of the <sup>13</sup>C-NMR. in Protoporphyrin IX Iron (III) Dicyanide and Deuteroporphyrin IX Iron (III) Dicyanide.

Nachbargruppeneffekte bei der massenspektrometrischen Fragmentierung: N-Acetyl-ω-Phenylalkylamine. 20. Mitteilung über das massenspektrometrische verhalten von stickstoffverbindung.