Publications by authors named "Johann Lex"

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1
1,2,5,10,11,14-hexaoxadispiro[5.2.5.2]hexadecanes: novel spirofused bis-trioxane peroxides.
Axel G Griesbeck, Lars-Oliver Höinck, Johann Lex, Jörg Neudörfl, Dirk Blunk

Molecules· August 2008

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Highly enantioselective epoxidation of 2-methylnaphthoquinone (vitamin K3) mediated by new cinchona alkaloid phase-transfer catalysts.
Albrecht Berkessel, Maria Guixà, Friederike Schmidt, Jörg M Neudörfl, Johann Lex

Chemistry· August 2007

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Structural optimization of thiourea-based bifunctional organocatalysts for the highly enantioselective dynamic kinetic resolution of azlactones.
Albrecht Berkessel, Santanu Mukherjee, Thomas N Müller, Felix Cleemann, Katrin Roland, Johann Lex

Org Biomol Chem· December 2006

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Enantiomerically pure isophorone diamine [3-(aminomethyl)-3,5,5-trimethylcyclohexylamine]: a chiral 1,4-diamine building block made available on large scale.
Albrecht Berkessel, Katrin Roland, Michael Schröder, Jörg M Neudörfl, Johann Lex

J Org Chem· December 2006

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The X-ray structure of the pyochelin Fe3+ complex.
Karin Schlegel, Johann Lex, Kambiz Taraz, Herbert Budzikiewicz

Z Naturforsch C J Biosci· August 2006

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Total synthesis of (-)-colchicine via a Rh-triggered cycloaddition cascade.
Timm Graening, Virginie Bette, Jörg Neudörfl, Johann Lex, Hans-Günther Schmalz

Org Lett· September 2005

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Second-generation organocatalysts for the highly enantioselective dynamic kinetic resolution of azlactones.
Albrecht Berkessel, Santanu Mukherjee, Felix Cleemann, Thomas N Muller, Johann Lex

Chem Commun (Camb)· April 2005

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Novel spiroanellated 1,2,4-trioxanes with high in vitro antimalarial activities.
Axel G Griesbeck, Tamer T El-Idreesy, Lars-Oliver Höinck, Johann Lex, Reto Brun

Bioorg Med Chem Lett· February 2005

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Highly efficient dynamic kinetic resolution of azlactones by urea-based bifunctional organocatalysts.
Albrecht Berkessel, Felix Cleemann, Santanu Mukherjee, Thomas N Müller, Johann Lex

Angew Chem Int Ed Engl· January 2005

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Transition-metal-mediated synthesis of novel carbocyclic nucleoside analogues with antitumoral activity.
Juraj Velcicky, Andreas Lanver, Johann Lex, Aram Prokop, Thomas Wieder

Chemistry· October 2004

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Stereoselective generation of vicinal stereogenic quaternary centers by photocycloaddition of 5-methoxy oxazoles to alpha-keto esters: synthesis of erythro beta-hydroxy dimethyl aspartates.
Axel G Griesbeck, Samir Bondock, Johann Lex

Org Biomol Chem· April 2004

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Enantioselective synthesis of DIANANE, a novel C2-symmetric chiral diamine for asymmetric catalysis.
Albrecht Berkessel, Michael Schröder, Christoph A Sklorz, Stefania Tabanella, Nadine Vogl, Johann Lex

J Org Chem· April 2004

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Synthesis of erythro-alpha-amino beta-hydroxy carboxylic acid esters by diastereoselective photocycloaddition of 5-methoxyoxazoles with aldehydes.
Axel G Griesbeck, Samir Bondock, Johann Lex

J Org Chem· December 2003

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Spiroconjugation in spirodicorrolato-dinickel(II).
Georg Hohlneicher, Dominik Bremm, Jennifer Wytko, Jordi Bley-Escrich, Jean-Paul Gisselbrecht, Johann Lex

Chemistry· November 2003

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Electronically tuned chiral ruthenium porphyrins: extremely stable and selective catalysts for asymmetric epoxidation and cyclopropanation.
Albrecht Berkessel, Patrick Kaiser, Johann Lex

Chemistry· October 2003

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Spirodiporphyrins--as binuclear metal complexes.
Emanuel Vogel, Martin Michels, Lars Zander, Johann Lex, Nurcan S Tuzun

Angew Chem Int Ed Engl· June 2003

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B
Baeyer-Villiger oxidations with hydrogen peroxide in fluorinated alcohols: lactone formation by a nonclassical mechanism.
Albrecht Berkessel, Marc R M Andreae, Hans Schmickler, Johann Lex

Angew Chem Int Ed Engl· December 2002

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An approach to serrulatane diterpenes via endo-selective conjugate nucleophilic addition to arene-Cr(CO)3 complexes.
Florian Dehmel, Johann Lex, Hans-Günther Schmalz

Org Lett· October 2002

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A photochemical route for efficient cyclopeptide formation with a minimum of protection and activation chemistry.
Axel G Griesbeck, Thomas Heinrich, Michael Oelgemöller, Johann Lex, Arne Molis

J Am Chem Soc· September 2002

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Metal complexes of porphycene, corrphycene, and hemiporphycene: stability and coordination chemistry.
Christopher J Fowler, Jonathan L Sessler, Vincent M Lynch, Jacek Waluk, Andreas Gebauer, Johann Lex

Chemistry· August 2002

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B
Benzylic endo-alkylation of phthalan-Cr(CO)3 complexes via temporary silylation: an entry to trans-1,3-disubstituted dihydroisobenzofurans.
Saskia Zemolka, Johann Lex, Hans-Günther Schmalz

Angew Chem Int Ed Engl· July 2002

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Facile construction of the colchicine skeleton by a rhodium-catalyzed cyclization/cycloaddition cascade.
Timm Graening, Willy Friedrichsen, Johann Lex, Hans-Günther Schmalz

Angew Chem Int Ed Engl· May 2002

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Photocyclization of N,N-phthaloylanthranilic amides coupled to omega-amino acids with increasing chain lengths.
Axel G Griesbeck, Wolfgang Kramer, Thomas Heinrich, Johann Lex

Photochem Photobiol Sci· April 2002

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An efficient organometallic approach to new carbocyclic nucleoside analogues.
Juraj Velcicky, Johann Lex, Hans-Günther Schmalz

Org Lett· February 2002

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Diastereo- and Enantioselective Synthesis of Pyrrolo.
Axel G. Griesbeck, Wolfgang Kramer, Johann Lex

Angew Chem Int Ed Engl· February 2001

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