Urs Leutenegger

5-aza-semicorrins: A new class of bidentate nitrogen ligands for enantioselective catalysis

Urs Leutenegger, Gisela Umbricht, Christoph J. Fahrni et al. · Tetrahedron · 1992 · 298 citations

Chemical Engineering, Engineering, Organic Chemistry +9

Semicorrin metal complexes as enantioselective catalysts. Part 2. Enantioselective cyclopropane formation from olefins with diazo compounds catalyzed by chiral (semicorrinato)copper complexes

Hugo Fritschi, Urs Leutenegger, Andreas Pfaltz · Helvetica Chimica Acta · 1988 · 278 citations

Chemical Engineering, Enantioselective Synthesis, Engineering +14

Chiral Copper‐Semicorrin Complexes as Enantioselective Catalysts for the Cyclopropanation of Olefins by Diazo Compounds

Hugo Fritschi, Urs Leutenegger, Andreas Pfaltz · Angewandte Chemie International Edition in English · 1986 · 203 citations

Engineering, Chiral Copper‐semicorrin Complexes, Diazo Compounds +16

Enantioselective Reduction of α,β‐Unsaturated Carboxylates with NaBH₄ and Catalytic Amounts of Chiral Cobalt Semicorrin Complexes

Urs Leutenegger, Andrew Madin, Andreas Pfaltz · Angewandte Chemie International Edition in English · 1989 · 151 citations

Asymmetric Catalysis, Chemical Engineering, Biosynthesis +15

Semicorrin Metal Complexes as Enantioselective Catalysts. Part 1. Synthesis of chiral semicorrin ligands and general concepts

Hugo Fritschi, Urs Leutenegger, Konstantin Siegmann et al. · Helvetica Chimica Acta · 1988 · 117 citations

Chemical Engineering, Enantioselective Synthesis, Engineering +12