Works by Scheffold, Rolf

Results: 36

Vitamin B12 and a Vitamin B12 Model Compound as Catalysts of Reductive Removal of β-Haloethyl Protecting Groups from Acids.

Published in:

Angewandte Chemie International Edition, 1980, v. 19, n. 8, p. 629, doi. 10.1002/anie.198006291

By:

Scheffold, Rolf;
Amble, Erik

Publication type:

Article

Cleavage of Allyl Ethers with Pd/C.

Published in:

Angewandte Chemie International Edition, 1976, v. 15, n. 9, p. 558, doi. 10.1002/anie.197605581

By:

Boss, Roland;
Scheffold, Rolf

Publication type:

Article

Organomercury Carbenoids for the Synthesis of Cyclopropane Derivatives.

Published in:

Angewandte Chemie International Edition, 1972, v. 11, n. 3, p. 231, doi. 10.1002/anie.197202311

By:

Scheffold, Rolf;
Michel, Urs

Publication type:

Article

Carbodiimidium Compounds as Reagents in Organic Chemistry.

Published in:

Angewandte Chemie International Edition, 1972, v. 11, n. 3, p. 229, doi. 10.1002/anie.197202291

By:

Scheffold, Rolf;
Saladin, Emil

Publication type:

Article

Corrin Syntheses. Part IV.

Published in:

Helvetica Chimica Acta, 2015, v. 98, n. 11/12, p. 1755, doi. 10.1002/hlca.201200342

By:

Bertele, Erhard;
Scheffold, Rolf;
Gschwend, Heinz;
Pesaro, Mario;
Fischli, Albert;
Roth, Martin;
Schossig, Jürgen;
Eschenmoser, Albert

Publication type:

Article

Corrin Syntheses. Part II.

Published in:

Helvetica Chimica Acta, 2015, v. 98, n. 11/12, p. 1601, doi. 10.1002/hlca.201200095

By:

Scheffold, Rolf;
Bertele, Erhard;
Gschwend, Heinz;
Häusermann, Werner;
Wehrli, Pius;
Huber, Willi;
Eschenmoser, Albert

Publication type:

Article

Synthesis of Vitamin B12 Derivatives with a Peripheral Metal Binding Site.

Published in:

Helvetica Chimica Acta, 1997, v. 80, n. 4, p. 1183, doi. 10.1002/hlca.19970800416

By:

Mayor, Marcel;
Scheffold, Rolf;
Walder, Lorenz

Publication type:

Article

Synthesis of Carbocyclic C-Nucleosides Containing Nonnatural Pyrimidine Bases.

Published in:

Helvetica Chimica Acta, 1996, v. 79, n. 3, p. 702, doi. 10.1002/hlca.19960790312

By:

Hildbrand, Stefan;
Leumann, Christian;
Scheffold, Rolf

Publication type:

Article

Synthesis of a Building Block for a Nucleic-Acid Analog with a Chiral, Flexible Peptide Backbone.

Published in:

Helvetica Chimica Acta, 1996, v. 79, n. 1, p. 288, doi. 10.1002/hlca.19960790128

By:

Savithri, Dhanalekshmi;
Leumann, Christian;
Scheffold, Rolf

Publication type:

Article

Synthesis of (+)-Multifidene.

Published in:

Helvetica Chimica Acta, 1995, v. 78, n. 2, p. 447, doi. 10.1002/hlca.19950780215

By:

Hemamalini, Sundarababu;
Scheffold, Rolf

Publication type:

Article

Asymmetric Catalysis by Vitamin B12: The isomerization of achiral cyclopropanes to optically active olefins.

Published in:

Helvetica Chimica Acta, 1994, v. 77, n. 5, p. 1193, doi. 10.1002/hlca.19940770502

By:

Troxler, Thomas;
Scheffold, Rolf

Publication type:

Article

A Short Synthesis of (−)-Carbovir.

Published in:

Helvetica Chimica Acta, 1994, v. 77, n. 5, p. 1236, doi. 10.1002/hlca.19940770506

By:

Hildbrand, Stefan;
Troxler, Thomas;
Scheffold, Rolf

Publication type:

Article

Vitamin-B12-katalysierte C,C-Bindungsverknüpfung: Synthese von Jasmonaten via sequentielle Radikal-Reaktion.

Published in:

Helvetica Chimica Acta, 1994, v. 77, n. 1, p. 92, doi. 10.1002/hlca.19940770112

By:

Busato, Stephan;
Scheffold, Rolf

Publication type:

Article

Asymmetric Catalysis by Vitamin B12: The Isomerization of Achiral Aziridines to Optically Active Allylic Amines.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 7, p. 2602, doi. 10.1002/hlca.19930760719

By:

Zhang, Zhong Da;
Scheffold, Rolf

Publication type:

Article

Vitamin-B12-Catalyzed C,C-Bond Formation. Synthesis of a california red scale pheromone.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 2, p. 810, doi. 10.1002/hlca.19930760205

By:

Auer, Lucas;
Weymuth, Christophe;
Scheffold, Rolf

Publication type:

Article

Zum Mechanismus der sequentiellen Radikal-Cyclisierung von (Bromomethyl)silyl-ethern terpenoider Alkohole.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 2, p. 804, doi. 10.1002/hlca.19930760204

By:

Lakomy, Ivo;
Scheffold, Rolf

Publication type:

Article

Synthese chiraler Kobalt-Komplexe mit planoid-tetradentatem Ligand-System.

Published in:

Helvetica Chimica Acta, 1993, v. 76, n. 1, p. 353, doi. 10.1002/hlca.19930760120

By:

Härter, Ralph;
Wegmuth, Christophe;
Scheffold, Rolf;
Engel, Peter;
Linden, Anthony

Publication type:

Article

SN2 or Electron Transfer?? A new technique discriminates the mechanisms of oxidative addition of alkyl halides to corrinato- and porphyrinatocobalt(I).

Published in:

Helvetica Chimica Acta, 1992, v. 75, n. 4, p. 995, doi. 10.1002/hlca.19920750403

By:

Zhou, De-Ling;
Walder, Peristera;
Scheffold, Rolf;
Walder, Lorenz

Publication type:

Article

Asymmetric Catalysis by Vitamin B12. The Mechanism of the Cob(I)alamin-Catalyzed Isomerization of 1,2-Epoxycyclopentane to ( R)-Cyclopent-2-enol.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1425, doi. 10.1002/hlca.19910740706

By:

Bonhôte, Pierre;
Scheffold, Rolf

Publication type:

Article

Reductive Radical Cyclisations of Bromo Acetals and (Bromomethyl)silyl Ethers of Terpenoid Alcohols.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 1, p. 146, doi. 10.1002/hlca.19910740117

By:

Lee, Edward R.;
Lakomy, Ivo;
Bigler, Peter;
Scheffold, Rolf

Publication type:

Article

Influence of the Axial Alkyl Ligand on the Reduction Potential of Alkylcob(III)alamins and Alkylcob(III)yrinates.

Published in:

Helvetica Chimica Acta, 1990, v. 73, n. 8, p. 2225, doi. 10.1002/hlca.19900730820

By:

Zhou, De-Ling;
Tinembart, Olivier;
Scheffold, Rolf;
Walder, Lorenz

Publication type:

Article

Asymmetric Catalysis by Vitamin B12. The isomerization of achiral epoxides to optically active allylic alcohols.

Published in:

Helvetica Chimica Acta, 1988, v. 71, n. 5, p. 1073, doi. 10.1002/hlca.19880710520

By:

Su, Heng;
Walder, Lorenz;
Zhang, Zhong-da;
Scheffold, Rolf

Publication type:

Article

Oberflächenmodifikation von Kohlenstoff-Elektroden durch Zweikomponenten-Polymere, aufgebaut aus Epoxidharzen und einem Derivat von Vitamin B12.

Published in:

Helvetica Chimica Acta, 1985, v. 68, n. 5, p. 1301, doi. 10.1002/hlca.19850680525

By:

Ruhe, Annette;
Walder, Lorenz;
Scheffold, Rolf

Publication type:

Article

Synthesis, Structure, and Redox Chemistry of a Vitamin-B12s-Related Macrocyclic Complex of Cobalt(I).

Published in:

Helvetica Chimica Acta, 1984, v. 67, n. 7, p. 1801, doi. 10.1002/hlca.19840670718

By:

Walder, Lorenz;
Rytz, Gerhard;
Vögeli, Ulrich;
Scheffold, Rolf;
Engel, Peter

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

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

Bestimmung der Chiralität optisch aktiver Nickelkomplexe mit porphinoidem Ligandysystem.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 5, p. 1496, doi. 10.1002/hlca.19810640525

By:

Meier, Kurt;
Scheffold, Rolf;
Engel, Peter

Publication type:

Article

Enantioselektive Reaktionen an porphinoiden Nickelkomplexen.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 5, p. 1505, doi. 10.1002/hlca.19810640526

By:

Meier, Kurt;
Scheffold, Rolf

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

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

Stereoselektive Hydrid-Reduktion von Tetronsäurederivaten. Synthese verzweigtkettiger Tetrofuranosen.

Published in:

Helvetica Chimica Acta, 1981, v. 64, n. 3, p. 775, doi. 10.1002/hlca.19810640317

By:

Wyss, Heinz;
Vögeli, Ulrich;
Scheffold, Rolf

Publication type:

Article

Synthese von Diaza-octahydroporphinato-kobalt (III)-Komplexen als Vitamin-B12-Modellverbindungen.

Published in:

Helvetica Chimica Acta, 1980, v. 63, n. 3, p. 733, doi. 10.1002/hlca.19800630324

By:

Rytz, Gerhard;
Scheffold, Rolf

Publication type:

Article

Stereochemie der Bildung und Spaltung der (CoC)-Bindung an einem Vitamin-B12-Modell 3. (vorläufige) Mitteilung.

Published in:

Helvetica Chimica Acta, 1978, v. 61, n. 8, p. 3013, doi. 10.1002/hlca.19780610826

By:

Walder, Lorenz;
Rytz, Gerhard;
Meier, Kurt;
Scheffold, Rolf

Publication type:

Article

Synthese von Nickelkomplexen mit porphinoidem Ligandsystem.

Published in:

Helvetica Chimica Acta, 1977, v. 60, n. 8, p. 2644, doi. 10.1002/hlca.19770600816

By:

Löliger, Jürg;
Scheffold, Rolf

Publication type:

Article

Nachweis von Fragment-Genesen im Massenspektrometer 1. Mitteilung Struktur des Schlüsselfragmentes von Bisamidin ((3,3,4,4-Tetramethyl-5-imino-1-pyrrolin-2-yl)-(3′,3′,4′,4′-tetramethyl-5′-iminopyrrolidin-2′-yliden)-methan), einem Zwischenprodukt zur Synthese von Hexahydroporphinen

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 1, p. 65, doi. 10.1002/hlca.19750580108

By:

Schlunegger, Urs Peter;
Leutwyler, Samuel;
Friedli, Felix;
Scheffold, Rolf

Publication type:

Article

Synthese und Reaktionen von Metallkomplexen mit porphinoidem Ligandsystem 1. Mitteilung (3,3,4,4-Tetramethyl-5-imino-1-pyrrolin-2-yl)-(3′,3′,4′,4′-tetramethyl-5′-iminopyrrolidin-2′-yliden)-methan, ein Zwischenprodukt zur Synthese von Hexahydroporphinen

Published in:

Helvetica Chimica Acta, 1975, v. 58, n. 1, p. 49, doi. 10.1002/hlca.19750580107

By:

Scheffold, Rolf;
Löliger, Jürg;
Blaser, Hansueli;
Geisser, Peter

Publication type:

Article

Works by Scheffold, Rolf

Vitamin B<sub>12</sub> and a Vitamin B<sub>12</sub> Model Compound as Catalysts of Reductive Removal of β-Haloethyl Protecting Groups from Acids.

Cleavage of Allyl Ethers with Pd/C.

Organomercury Carbenoids for the Synthesis of Cyclopropane Derivatives.

Carbodiimidium Compounds as Reagents in Organic Chemistry.

Corrin Syntheses. Part IV.

Corrin Syntheses. Part II.

Synthesis of Vitamin B<sup>12</sup> Derivatives with a Peripheral Metal Binding Site.

Synthesis of Carbocyclic C-Nucleosides Containing Nonnatural Pyrimidine Bases.

Synthesis of a Building Block for a Nucleic-Acid Analog with a Chiral, Flexible Peptide Backbone.

Synthesis of (+)-Multifidene.

Asymmetric Catalysis by Vitamin B<sub>12</sub>: The isomerization of achiral cyclopropanes to optically active olefins.

A Short Synthesis of (−)-Carbovir.

Vitamin-B<sub>12</sub>-katalysierte C,C-Bindungsverknüpfung: Synthese von Jasmonaten via sequentielle Radikal-Reaktion.

Asymmetric Catalysis by Vitamin B<sub>12</sub>: The Isomerization of Achiral Aziridines to Optically Active Allylic Amines.

Vitamin-B<sub>12</sub>-Catalyzed C,C-Bond Formation. Synthesis of a california red scale pheromone.

Zum Mechanismus der sequentiellen Radikal-Cyclisierung von (Bromomethyl)silyl-ethern terpenoider Alkohole.

Synthese chiraler Kobalt-Komplexe mit planoid-tetradentatem Ligand-System.

S<sub>N</sub>2 or Electron Transfer?? A new technique discriminates the mechanisms of oxidative addition of alkyl halides to corrinato- and porphyrinatocobalt(I).

Asymmetric Catalysis by Vitamin B<sub>12</sub>. The Mechanism of the Cob(I)alamin-Catalyzed Isomerization of 1,2-Epoxycyclopentane to ( R)-Cyclopent-2-enol.

Reductive Radical Cyclisations of Bromo Acetals and (Bromomethyl)silyl Ethers of Terpenoid Alcohols.

Influence of the Axial Alkyl Ligand on the Reduction Potential of Alkylcob(III)alamins and Alkylcob(III)yrinates.

Asymmetric Catalysis by Vitamin B<sub>12</sub>. The isomerization of achiral epoxides to optically active allylic alcohols.

Oberflächenmodifikation von Kohlenstoff-Elektroden durch Zweikomponenten-Polymere, aufgebaut aus Epoxidharzen und einem Derivat von Vitamin B<sub>12</sub>.

Synthesis, Structure, and Redox Chemistry of a Vitamin-B<sub>12s</sub>-Related Macrocyclic Complex of Cobalt(I).

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

Reaktivität und Elektronenstruktur porphinoider Nickelkomplexe.

Bestimmung der Chiralität optisch aktiver Nickelkomplexe mit porphinoidem Ligandysystem.

Enantioselektive Reaktionen an porphinoiden Nickelkomplexen.

Synthese optisch aktiver Nickel-Komplexe mit porphinoidem Ligandsystem.

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

Stereoselektive Hydrid-Reduktion von Tetronsäurederivaten. Synthese verzweigtkettiger Tetrofuranosen.

Synthese von Diaza-octahydroporphinato-kobalt (III)-Komplexen als Vitamin-B<sub>12</sub>-Modellverbindungen.

Stereochemie der Bildung und Spaltung der (CoC)-Bindung an einem Vitamin-B<sub>12</sub>-Modell 3. (vorläufige) Mitteilung.

Synthese von Nickelkomplexen mit porphinoidem Ligandsystem.

Nachweis von Fragment-Genesen im Massenspektrometer 1. Mitteilung Struktur des Schlüsselfragmentes von Bisamidin ((3,3,4,4-Tetramethyl-5-imino-1-pyrrolin-2-yl)-(3′,3′,4′,4′-tetramethyl-5′-iminopyrrolidin-2′-yliden)-methan), einem Zwischenprodukt zur Synthese von Hexahydroporphinen

Synthese und Reaktionen von Metallkomplexen mit porphinoidem Ligandsystem 1. Mitteilung (3,3,4,4-Tetramethyl-5-imino-1-pyrrolin-2-yl)-(3′,3′,4′,4′-tetramethyl-5′-iminopyrrolidin-2′-yliden)-methan, ein Zwischenprodukt zur Synthese von Hexahydroporphinen