Works matching IS 0018019X AND DT 2005 AND VI 88 AND IP 7

Results: 27

First [4+2] Cycloadditions Involving the Olefinic Bond of an Aldoketeniminium Salt (=N-Alk-1-enylideneaminium Salt).

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 2022

By:

Florence Mahuteau-Betzer;
Ping-Yu Ding;
Lon Ghosez

Publication type:

Article

Cycloaddition Reactions of 7-Benzylidenecycloocta-1,3,5-triene with Ethenetetracarbonitrile and 4-Phenyl-3H-1,2,4-triazole-3,5(4H)-dione.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 2003

By:

Philip Clements;
George 4;E. Gream;
Paul 4;K. Kirkbride;
Simon 4;M. Pyke

Publication type:

Article

Palladium-Catalyzed Amination of 3,5-Dihalopyridines a Convenient Route to New Polyazamacrocycles.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1983

By:

Alexei 4;D. Averin;
Olesya 4;A. Ulanovskaya;
Ilya 4;A. Fedotenko;
Anatolii 4;A. Borisenko;
Marina 4;V. Serebryakova;
Irina 4;P. Beletskaya

Publication type:

Article

NMR-Solution Structures in Methanol of an a-Heptapeptide, of a 3/2-Nonapeptide, and of an all-3-Icosapeptide Carrying the 20 Proteinogenic Side Chains.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1969

By:

Dieter Seebach;
Raveendra 4;I. Mathad;
Thierry Kimmerlin;
Yogesh 4;R. Mahajan;
Pascal Bindschdler;
Magnus Rueping;
Bernhard Jaun;
Christian Hilty;
Touraj Etezady-Esfarjani

Publication type:

Article

Tautomerism in 5,8-Diaza-7,9-dicarbaguanine (Alloguanine)Chemistry of a-Aminonitriles, Part 4;44; for Part 4;43, see [1].

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1960

By:

Trixie Wagner;
Bo Han;
Guido Koch;
Ramanarayanan Krishnamurthy;
Albert Eschenmoser

Publication type:

Article

Synthesis of the 2-Alkenyl-4-alkylidenebut-2-eno-4-lactone (=a-Alkenyl-?-alkylidenebutenolide) Core Structure of the Carotenoid Pyrrhoxanthin via the Regioselective Dihydroxylation of Hepta-2,4-diene-5-ynoic Acid Esters.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1943

By:

Joachim Schmidt-Leithoff;
Reinhard Brckner

Publication type:

Article

Solid-State NMR Study of the Tautomerism of Acetylacetone Included in a Host Matrix.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1931

By:

Rosa 4;M. Claramunt;
Concepcin Lpez;
Susanne Lott;
M. 4;Dolores Santa 4;Mara;
Ibon Alkorta;
Jos Elguero

Publication type:

Article

Light-Induced Cycloaddition of 2,3-Dihydro-2,2-dimethyl-4H-thiopyran-4-one (a 4-Thiacyclohex-2-enone) to Alkenes and Dienes.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1922

By:

Kerstin Schmidt;
Paul Margaretha

Publication type:

Article

Fluorinated Diazo Diketones in Rhodium(II)-Catalyzed Reactions with Sultams: Chemoselective O-Functionalization of Amide Carbonyl Groups.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1913

By:

Valeria 4;M. Zakharova;
Brbel Schulze;
Ludmila 4;L. Rodina;
Joachim Sieler;
Valerij 4;A. Nikolaev

Publication type:

Article

Functionalised Bicyclic exo-Glycals by Alkynol Cycloisomerisation of Hydroxy 1,3-Diynes and Hydroxy Haloalkynes.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1885

By:

Zhiwei Miao;
Ming Xu;
Barbara Hoffmann;
Bruno Bernet;
Andrea Vasella

Publication type:

Article

Oligoporphyrin Arrays Conjugated to [60]Fullerene: Preparation, NMR Analysis, and Photophysical and Electrochemical Properties.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1839

By:

Davide Bonifazi;
Gianluca Accorsi;
Nicola Armaroli;
Fayi Song;
Amit Palkar;
Luis Echegoyen;
Markus Scholl;
Paul Seiler;
Bernhard Jaun;
Franois Diederich

Publication type:

Article

Syntheses of Enantiomerically Pure 2-Substituted Pyrrolidin-3-ones via Lithiated Alkoxyallenes An Auxiliary-Based Synthesis of both Enantiomers of the Antibiotic Anisomycin.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1826

By:

Silvia Kaden;
Mirjam Brockmann;
Hans-Ulrich Reissig

Publication type:

Article

1,3-Dipolar Cycloaddition Reactions of Organic Azides with Morpholinobuta-1,3-dienes and with an a-Ethynyl-enamine.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1813

By:

Martina Brunner;
Gerhard Maas;
Frank-Gerrit Klrner

Publication type:

Article

A Novel Coupling 1,3-Dipolar Cycloaddition Sequence as a Three-Component Approach to Highly Fluorescent Indolizines.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1798

By:

Alexandru 4;V. Rotaru;
Ioan 4;D. Druta;
Thomas Oeser;
Thomas 4;J. 4;J. Mller

Publication type:

Article

Basicity of Phenyl- and Methyl-Substituted 1,2,4-Oxadiazoles.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1790

By:

Rostislav 4;E. Trifonov;
Anna 4;P. Volovodenko;
Sergei 4;N. Vergizov;
Nabi 4;I. Shirinbekov;
Vladimir 4;A. Gindin;
Andrei 4;O. Koren;
Vladimir 4;A. Ostrovskii

Publication type:

Article

Process-Scale Total Synthesis of Nature-Identical (-)-(S,S)-7-Hydroxycalamenal in High Enantiomeric Purity through Catalytic Enantioselective Hydrogenation.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1776

By:

Tiziana Benincori;
Silvana Bruno;
Giuseppe Celentano;
Tullio Pilati;
Alessandro Ponti;
Simona Rizzo;
Mara Sada;
Francesco Sannicol

Publication type:

Article

Stereoselective Cyclopropanation of 2-[(S)-(4-Methylphenyl)sulfinyl]cyclopent-2-en-1-one with Sulfur Ylides and a-Halo Carbanions. Preliminary Communication.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1769

By:

Marian Mikolajczyk;
Wanda 4;H. Midura;
Elena Michedkina;
Agnieszka 4;D. Filipczak;
Michal 4;W. Wieczorek

Publication type:

Article

Quantification of the -Stabilizing Effect of the Dicarbonyl(?5-cyclopentadienyl)iron Group.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1754

By:

Felix Dulich;
Karl-Heinz Mller;
Armin 4;R. Ofial;
Herbert Mayr

Publication type:

Article

Multicomponent Strecker Reaction under High Pressure.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1734

By:

Kiyoshi Matsumoto;
Jong 4;Chul Kim;
Hirokazu Iida;
Hiroshi Hamana;
Koji Kumamoto;
Hiyoshizo Kotsuki;
Grard Jenner

Publication type:

Article

Application of the Direct Amide Cyclization to Peptides Containing an Anthranilic Acid Residue.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1711

By:

Irena Philipova;
Anthony Linden;
Heinz Heimgartner

Publication type:

Article

Activation Energies and Reaction Energetics for 1,3-Dipolar Cycloadditions of Hydrazoic Acid with C—C and C—N Multiple Bonds from High-Accuracy and Density Functional Quantum Mechanical Calculations.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1702

By:

Gavin 4;O. Jones;
Daniel 4;H. Ess;
Kendall 4;N. Houk

Publication type:

Article

Xanthone Receptors as Oxyanion-Hole Mimics in Artificial Enzymes.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1682

By:

Luis Simn;
Francisco 4;M. Muiz;
Silvia Sez;
Csar Raposo;
Francisca Sanz;
Joaqun 4;R. Morn

Publication type:

Article

New Synthesis of Pyrrolidines via Reaction of ?-Halocarbanions with Imines.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1676

By:

Mieczyslaw Makosza;
Marek Judka

Publication type:

Article

The Preparation of 1,2,3-Trisubstituted Guanidines.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1664

By:

Alan 4;R. Katritzky;
Niveen 4;M. Khashab;
Sergey Bobrov

Publication type:

Article

Ring Opening of 1-Azabicyclo[1.1.0]butanes with Hydrazoic Acid a Facile Access to N-Unsubstituted Azetidin-3-Amines.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1658

By:

Grzegorz Mloston;
Malgorzata Celeda

Publication type:

Article

Novel Sulfonamide Derivatives as Inhibitors of Histone Deacetylase.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1630

By:

Paul 4;W. Finn;
Morwena Bandara;
Chris Butcher;
Angela Finn;
Ruth Hollinshead;
Nagma Khan;
Norman Law;
Sreenivasa Murthy;
Rosario Romero;
Clare Watkins;
Victor Andrianov;
Rasma 4;M. Bokaldere;
Klara Dikovska;
Vija Gailite;
Einars Loza;
Irina Piskunova;
Igor Starchenkov;
Maxim Vorona;
Ivars Kalvinsh

Publication type:

Article

Water and the Huisgen Cycloaddition Reaction: A Focus on Polar Contributions to the Transition State in the Reactions of Dicyano(phthalazinium)methanide with Substituted Styrenes and Benzylidene Acetones.

Published in:

Helvetica Chimica Acta, 2005, v. 88, n. 7, p. 1611

By:

Richard 4;N. Butler;
Anthony 4;G. Coyne;
William 4;J. Cunningham;
Eamon 4;M. Moloney;
Luke 4;A. Burke

Publication type:

Article