Works matching IS 0018019X AND DT 1981 AND VI 64 AND IP 4

Results: 27

Heterodiamantane und strukturell verwandte Verbindungen. III.. Pentacyclische diäther der C11-reihe. 5, 13-Dioxapentacyclo-[6.5.0.02,6.03,12.04,9]tridecan, 4, 13-dioxapentacyclo [6.4.1.02,7.03,10.05,9]tridecan und 3, 10-dioxapentacyclo [7.3.1.02,7.04,12.06,11]tridecan
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 996, doi. 10.1002/hlca.19810640406
By:
- Ammann, Willi;
- Ganter, Camille
Publication type:
Article
Anwendung der α-Alkinon-Cyclisierung: Synthese von rac-Modhephen.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1123, doi. 10.1002/hlca.19810640417
By:
- Karpf, Martin;
- Dreiding, André S.
Publication type:
Article
Masthead.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. fmi, doi. 10.1002/hlca.19810640401
Publication type:
Article
The Influence of Molecular Host Lattices on Electronic Properties of Orbitally (Near-) Degenerate Transition Metal Complexes.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1063, doi. 10.1002/hlca.19810640412
By:
- Ammeter, John H.;
- Zoller, Linus;
- Bachmann, Jürg;
- Baltzer, Philippe;
- Gamp, Eduard;
- Bucher, René;
- Deiss, Erich
Publication type:
Article
A Comparative Study of Platinum Di ( t-butyl) (15N2)diimine and trans-[(PtCl2(N-ligand)PBu3)] complexes by 195Pt-, 31P- and 15N-NMR.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1174, doi. 10.1002/hlca.19810640423
By:
- van der Poel, Henk;
- van Koten, Gerard;
- Grove, David M.;
- Pregosin, Paul S.;
- Starzewski, Karl A. Ostoja
Publication type:
Article
Chiral 1, 4-Benzodiazepin-2-one, template for enantioselective synthesis of α-amino acids and their α-deuterio congeners. Preliminary communication.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1145, doi. 10.1002/hlca.19810640420
By:
- Decorte, Enio;
- Toso, Roberto;
- Sega, Alessandro;
- Šunjié, Vitomir;
- Ružić-Toroš, Živa;
- Kojić-Prodić, Biserka;
- Bresciani-Pahor, Nevenka;
- Nardin, Giorgio;
- Randaccio, Lucio
Publication type:
Article
Proof of the Absolute Configuration of (−)-( S)-2-Hydroxy-β-ionone by correlation with ursolic acid and with (−)- trans-verbenol.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 943, doi. 10.1002/hlca.19810640402
By:
- Escher, Sina;
- Giersch, Wolfgang;
- Ohloff, Günther
Publication type:
Article
Reaktionen von 2- und 3-phenylsubstituierten Alkylakyliden-iminium-Ionen in der Gasphase. 5. Mitteilung über stossinduzierte Fragmentierungen von felddesorbierten Kationen.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1083, doi. 10.1002/hlca.19810640413
By:
- Fischer, Matthias;
- Veith, Hans Jürgen
Publication type:
Article
New Triterpenes from the Bark of Western White Pine ( Pinus monticola D OUGL.).
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1183, doi. 10.1002/hlca.19810640424
By:
- Kutney, James P.;
- Eigendorf, Günter;
- Worth, Brian R.;
- Rowe, John W.;
- Conner, Anthony H.;
- Nagasampagi, Bhimsen A.
Publication type:
Article
Photolysis of dimethylnitrosamine in the gas phase.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 989, doi. 10.1002/hlca.19810640405
By:
- Geiger, Georg;
- Huber, J. Robert
Publication type:
Article
Synthese optisch aktiver Nickel-Komplexe mit porphinoidem Ligandsystem.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1113, doi. 10.1002/hlca.19810640416
By:
- Vogel, Ulrich;
- Meier, Kurt;
- Löliger, Jürg;
- Scheffold, Rolf
Publication type:
Article
Azimine. V.. Untersuchungen zur stereoisomerie an der N(2), N(3)-bindung von 2, 3-dialkyl-1-phthalimido-aziminen.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1219, doi. 10.1002/hlca.19810640426
By:
- Leuenberger, Christian;
- Hoesch, Lienhard;
- Dreiding, André S.
Publication type:
Article
Mitteilungen.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1234, doi. 10.1002/hlca.19810640427
Publication type:
Article
Rates of Proton Abstraction from Conjugated Dienes in the Gas Phase.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1058, doi. 10.1002/hlca.19810640411
By:
- Meyer, Felix K.;
- Pellerite, Mark J.;
- Brauman, John I.
Publication type:
Article
Total Synthesis of All Eight Stereoisomers of α-Tocopheryl Acetate. Determination of their diastereoisomeric and enantiomeric purity by gas chromatography.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1158, doi. 10.1002/hlca.19810640422
By:
- Cohen, Noal;
- Scott, Clifford G.;
- Neukom, Christian;
- Lopresti, Rocco J.;
- Weber, Giuseppe;
- Saucy, Gabriel
Publication type:
Article
Conformational Dependence of One-Bond Cα,H Spin Coupling in Cyclic Peptides.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 976, doi. 10.1002/hlca.19810640404
By:
- Egli, Huldrych;
- Von Philipsborn, Wolfgang
Publication type:
Article
Synthese und Struktur porphinoider Nickel-Komplexe mit axial orientierten Seitenketten.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1098, doi. 10.1002/hlca.19810640415
By:
- Mez, Hans Christian;
- Löliger, Jürg;
- Vogel, Ulrich;
- Meier, Kurt;
- Scheffold, Rolf
Publication type:
Article
Some Observations Concerning 1H-NMR. Spectra of 5-hydroxy- and 5-acetoxy-steroid compounds.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1032, doi. 10.1002/hlca.19810640409
By:
- Mihailović, Mihailo Lj.;
- Lorenc, Ljubinka;
- Pavlović, Vladimir;
- Fuhrer, Hermann
Publication type:
Article
Ein neuer Reaktionsweg zu 1, 3-Dicarbonylderivaten. Modelluntersuchungen am A/B-Teil von 3-Oxo-5α-steroiden.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1026, doi. 10.1002/hlca.19810640408
By:
- Berbalk, Hans;
- Eichinger, Karl;
- Winetzhammer, Willibald
Publication type:
Article
Synthesis of Reactive Intermediates for Natural Cyclopentane Derivatives from (−)-Quinic Acid: Preparation of 11α-hydroxy-13-oxaprostanoic acid.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1140, doi. 10.1002/hlca.19810640419
By:
- Barrière, Jean-Claude;
- Chiaroni, Angèle;
- Cléophax, Jeanine;
- Géro, Stephan D.;
- Riche, Claude;
- Vuilhorgne, Mare
Publication type:
Article
Cryptates Sphériques. Synthèse et Complexes d'Inclusion de Ligands Macrotricycliques Sphériques.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1040, doi. 10.1002/hlca.19810640410
By:
- Graf, Ernest;
- Lehn, Jean-Marie
Publication type:
Article
119Sn- and 31P-NMR. Spectroscopy of the 5-coordinate complexes [Rh (SnClnBr(3−n)) (norbornadiene) (tertiary phosphine)2].
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1150, doi. 10.1002/hlca.19810640421
By:
- Garrlda, Maria;
- Garcia, Victoria;
- Kretschmer, Matthias;
- Pregosin, Paul S.;
- Ruegger, Heinz
Publication type:
Article
Wittig-Reaktionen von sulfonierten Phosphoniomethylstrylaromaten mit aromatischen und heteroaromatischen Aldehyden.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 957, doi. 10.1002/hlca.19810640403
By:
- Märky, Michael
Publication type:
Article
Carotenoids and Related Compounds. Part 36.. Further syntheses of zeaxanthin and rhodoxanthin.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1092, doi. 10.1002/hlca.19810640414
By:
- Ellis, Peter R.;
- Faruk, A. Erol;
- Moss, Gerard P.;
- Weedon, Basil C. L.
Publication type:
Article
Nitrosoalkenes: Synthesis and Reactivity.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1208, doi. 10.1002/hlca.19810640425
By:
- Francotte, Eric;
- Merényi, Robert;
- Vandenbulcke-Coyette, Brigitte;
- Viehe, Heinz-Günther
Publication type:
Article
A Note on Stereochemical Observations of the Deprotonation of Ethyl 2-Alkenoates.
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1023, doi. 10.1002/hlca.19810640407
By:
- Krebs, Ernst-Peter
Publication type:
Article
De la chimie des ptérines. 78e Communication.. Synthèse de l'ester tripolyphosphorique de la tétrahydro-5, 6, 7, 8- D-néoptérine. Essai d'interprétation de la biosynthèse de la L-sépiaptérine
Published in:
Helvetica Chimica Acta, 1981, v. 64, n. 4, p. 1134, doi. 10.1002/hlca.19810640418
By:
- Antoulas, Siméon;
- Viscontini, Max
Publication type:
Article

Works matching IS 0018019X AND DT 1981 AND VI 64 AND IP 4

Anwendung der α-Alkinon-Cyclisierung: Synthese von rac-Modhephen.

Masthead.

The Influence of Molecular Host Lattices on Electronic Properties of Orbitally (Near-) Degenerate Transition Metal Complexes.

A Comparative Study of Platinum Di ( t-butyl) (<sup>15</sup>N<sub>2</sub>)diimine and trans-[(PtCl<sub>2</sub>(N-ligand)PBu<sub>3</sub>)] complexes by <sup>195</sup>Pt-, <sup>31</sup>P- and <sup>15</sup>N-NMR.

Chiral 1, 4-Benzodiazepin-2-one, template for enantioselective synthesis of α-amino acids and their α-deuterio congeners. Preliminary communication.

Proof of the Absolute Configuration of (−)-( S)-2-Hydroxy-β-ionone by correlation with ursolic acid and with (−)- trans-verbenol.

Reaktionen von 2- und 3-phenylsubstituierten Alkylakyliden-iminium-Ionen in der Gasphase. 5. Mitteilung über stossinduzierte Fragmentierungen von felddesorbierten Kationen.

New Triterpenes from the Bark of Western White Pine ( Pinus monticola D OUGL.).

Photolysis of dimethylnitrosamine in the gas phase.

Synthese optisch aktiver Nickel-Komplexe mit porphinoidem Ligandsystem.

Azimine. V.. Untersuchungen zur stereoisomerie an der N(2), N(3)-bindung von 2, 3-dialkyl-1-phthalimido-aziminen.

Mitteilungen.

Rates of Proton Abstraction from Conjugated Dienes in the Gas Phase.

Total Synthesis of All Eight Stereoisomers of α-Tocopheryl Acetate. Determination of their diastereoisomeric and enantiomeric purity by gas chromatography.

Conformational Dependence of One-Bond C<sub>α</sub>,H Spin Coupling in Cyclic Peptides.

Synthese und Struktur porphinoider Nickel-Komplexe mit axial orientierten Seitenketten.

Some Observations Concerning <sup>1</sup>H-NMR. Spectra of 5-hydroxy- and 5-acetoxy-steroid compounds.

Ein neuer Reaktionsweg zu 1, 3-Dicarbonylderivaten. Modelluntersuchungen am A/B-Teil von 3-Oxo-5α-steroiden.

Synthesis of Reactive Intermediates for Natural Cyclopentane Derivatives from (−)-Quinic Acid: Preparation of 11α-hydroxy-13-oxaprostanoic acid.

Cryptates Sphériques. Synthèse et Complexes d'Inclusion de Ligands Macrotricycliques Sphériques.

<sup>119</sup>Sn- and <sup>31</sup>P-NMR. Spectroscopy of the 5-coordinate complexes [Rh (SnCl<sub>n</sub>Br<sub>(3−n)</sub>) (norbornadiene) (tertiary phosphine)<sub>2</sub>].

Wittig-Reaktionen von sulfonierten Phosphoniomethylstrylaromaten mit aromatischen und heteroaromatischen Aldehyden.

Carotenoids and Related Compounds. Part 36.. Further syntheses of zeaxanthin and rhodoxanthin.

Nitrosoalkenes: Synthesis and Reactivity.

A Note on Stereochemical Observations of the Deprotonation of Ethyl 2-Alkenoates.

De la chimie des ptérines. 78<sup>e</sup> Communication.. Synthèse de l'ester tripolyphosphorique de la tétrahydro-5, 6, 7, 8- D-néoptérine. Essai d'interprétation de la biosynthèse de la L-sépiaptérine