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Irene Erdelmeier

Technische Hochschule

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Featured researches published by Irene Erdelmeier.

Tetrahedron Letters | 1988

Synthesis of optically active 3-oxa-carbacyclin precursors featuring asymmetric Horner-Emmons reaction

Hans-Joachim Gais; Gerhard Schmiedl; Walter A. Ball; Jörg Bund; Gunther Hellmann; Irene Erdelmeier

Abstract An enantioselective synthesis of 5 is described. Asymmetric Horner-Emmons reactions with the chiral phosphonate 6 are key steps in the synthesis of the allylic alcohols E - 8 and E - 11 from the ketones 5 and 9, respectively.

Tetrahedron Letters | 1985

Stereoselective synthesis of enantiomerically pure 1-(E)-alkenylsulfoximines

Irene Erdelmeier; Hans-Joachim Gais

Abstract Optically active (E)-N-tosyl-S-(1-alkenyl)-S-phenylsulfoximines 4 are synthesized stereoselectively in a one pot sequence from readily available 1 via C-silylation, metallation and reaction of the corresponding lithiosulfoximine 3 with various carbonyl compounds. The El-MS spectra of the so prepared alkenylsulfoximines 4 show unexpected fragmentations, pointing to a new, unusual S-O-migration of the 1-alkenyl moiety.

Journal of the American Chemical Society | 1991

Regioselective and enantioselective substitution of allylic sulfoximines with organocopper reagents. A versatile approach to optically active isocarbacyclins

Joerg Bund; Hans Joachim Gais; Irene Erdelmeier

Angewandte Chemie | 1986

Lithium‐Coordinated α‐Sulfonimidoyl Carbanions: Crystal Study of [(S)‐(N‐Methyl‐S‐phenylsulfonimidoyl)methyllithium]4. 2(tmeda) and Configurative Stability of [(N‐Methyl‐S‐phenylsulfonimidoyl)isopropyllithium]

Hans-Joachim Gais; Irene Erdelmeier; Hans Jörg Lindner; Jürgen Vollhardt

Angewandte Chemie | 1986

Lithium‐koordinierte α‐Sulfonimidoylcarbanionen: Kristallstruktur von [(S)‐(N‐Methyl‐S‐phenyl‐sulfonimidoyl)methyllithium]4. 2 (tmeda) und konfigurative Stabilität von [(N‐Methyl‐S‐phenylsulfonimidoyl)isopropyllithium]

Hans-Joachim Gais; Irene Erdelmeier; Hans Jörg Lindner; Jürgen Vollhardt

Angewandte Chemie | 1986

Asymmetrische Eliminierung mit hoher Induktion: Synthese von 1‐Alkenylsulfoximiden mit axialer und zentraler Chiralität

Irene Erdelmeier; Hans-Joachim Gais; Hans Jörg Lindner

European Journal of Organic Chemistry | 1998

Asymmetric Synthesis of Isocarbacyclin Based on the Olefination-Isomerization-Coupling Process with Chiral Sulfoximines

Jörg Bund; Hans-Joachim Gais; Elmar Schmitz; Irene Erdelmeier; Gerhard Raabe

Helvetica Chimica Acta | 1987

Strukturaufklärung ungewöhnlicher Umlagerungsprodukte von S‐(1‐Alkenyl)sulfoximiden mit Hilfe der Stossaktivierungsmassenspektrometrie (CAD‐MS)

Hans‐Jürgen Veith; Hans-Joachim Gais; Irene Erdelmeier

Archive | 1988

Process for the E/Z stereoselective synthesis of homochiral five and six ring intermediate products

Hans-Joachim Gais; Irene Erdelmeier; Rolf Birk

Archive | 1987

Process for e/z stereoselective synthesis of homochiral five- and six-ring intermediates

Hans-Joachim Gais; Irene Erdelmeier; Rolf Birk

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Hans-Joachim Gais

Technische Hochschule

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Hans Jörg Lindner

Technische Hochschule

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Gerhard Raabe

RWTH Aachen University

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Gunther Hellmann

RWTH Aachen University

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Hans Joachim Gais

University of Freiburg

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Joerg Bund

RWTH Aachen University

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Walter A. Ball

Darmstadt University of Applied Sciences

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Hans‐Jürgen Veith

University of Zurich

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